Home / 1,240,105.70-1,860,159.90-492,151.70

Finding the Fourth Proportional to 1,240,105.70, 1,860,159.90 and 492,151.70

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Solution

The fourth proportional to 1,240,105.70, 1,860,159.90 and 492,151.70 is: 738,228.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,105.70 : 1,860,159.90 = 492,151.70 : x
  2. Step 2: Convert to fraction form
    1,240,105.70/1,860,159.90 = 492,151.70/x
  3. Step 3: Cross multiply
    1,240,105.70x = 1,860,159.90 × 492,151.70
  4. Step 4: Simplify right side
    1,240,105.70x = 915,480,857,056.83
  5. Step 5: Solve for x
    x = 915,480,857,056.83/1,240,105.70
  6. Step 6: Final answer
    x = 738,228.09

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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.