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Finding the Fourth Proportional to 624,890.48, 862,344.56 and 338,404.01

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Solution

The fourth proportional to 624,890.48, 862,344.56 and 338,404.01 is: 466,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,890.48 : 862,344.56 = 338,404.01 : x
  2. Step 2: Convert to fraction form
    624,890.48/862,344.56 = 338,404.01/x
  3. Step 3: Cross multiply
    624,890.48x = 862,344.56 × 338,404.01
  4. Step 4: Simplify right side
    624,890.48x = 291,820,853,639.97
  5. Step 5: Solve for x
    x = 291,820,853,639.97/624,890.48
  6. Step 6: Final answer
    x = 466,995.20

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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.