Home / 762,490.72-1,052,125.68-440,149.60

Finding the Fourth Proportional to 762,490.72, 1,052,125.68 and 440,149.60

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Solution

The fourth proportional to 762,490.72, 1,052,125.68 and 440,149.60 is: 607,342.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,490.72 : 1,052,125.68 = 440,149.60 : x
  2. Step 2: Convert to fraction form
    762,490.72/1,052,125.68 = 440,149.60/x
  3. Step 3: Cross multiply
    762,490.72x = 1,052,125.68 × 440,149.60
  4. Step 4: Simplify right side
    762,490.72x = 463,092,697,201.73
  5. Step 5: Solve for x
    x = 463,092,697,201.73/762,490.72
  6. Step 6: Final answer
    x = 607,342.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.