Home / 1,240,108.70-1,860,164.40-492,154.70

Finding the Fourth Proportional to 1,240,108.70, 1,860,164.40 and 492,154.70

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Solution

The fourth proportional to 1,240,108.70, 1,860,164.40 and 492,154.70 is: 738,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,108.70 : 1,860,164.40 = 492,154.70 : x
  2. Step 2: Convert to fraction form
    1,240,108.70/1,860,164.40 = 492,154.70/x
  3. Step 3: Cross multiply
    1,240,108.70x = 1,860,164.40 × 492,154.70
  4. Step 4: Simplify right side
    1,240,108.70x = 915,488,652,232.68
  5. Step 5: Solve for x
    x = 915,488,652,232.68/1,240,108.70
  6. Step 6: Final answer
    x = 738,232.59

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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.