Home / 764,136.70-1,144,892.85-497,760.10

Finding the Fourth Proportional to 764,136.70, 1,144,892.85 and 497,760.10

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Solution

The fourth proportional to 764,136.70, 1,144,892.85 and 497,760.10 is: 745,785.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,136.70 : 1,144,892.85 = 497,760.10 : x
  2. Step 2: Convert to fraction form
    764,136.70/1,144,892.85 = 497,760.10/x
  3. Step 3: Cross multiply
    764,136.70x = 1,144,892.85 × 497,760.10
  4. Step 4: Simplify right side
    764,136.70x = 569,881,979,505.29
  5. Step 5: Solve for x
    x = 569,881,979,505.29/764,136.70
  6. Step 6: Final answer
    x = 745,785.38

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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.