Home / 1,240,099.20-1,860,150.15-492,145.20

Finding the Fourth Proportional to 1,240,099.20, 1,860,150.15 and 492,145.20

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Solution

The fourth proportional to 1,240,099.20, 1,860,150.15 and 492,145.20 is: 738,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,099.20 : 1,860,150.15 = 492,145.20 : x
  2. Step 2: Convert to fraction form
    1,240,099.20/1,860,150.15 = 492,145.20/x
  3. Step 3: Cross multiply
    1,240,099.20x = 1,860,150.15 × 492,145.20
  4. Step 4: Simplify right side
    1,240,099.20x = 915,463,967,601.78
  5. Step 5: Solve for x
    x = 915,463,967,601.78/1,240,099.20
  6. Step 6: Final answer
    x = 738,218.34

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.