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Finding the Fourth Proportional to 624,729.92, 862,127.35 and 338,249.93

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Solution

The fourth proportional to 624,729.92, 862,127.35 and 338,249.93 is: 466,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,729.92 : 862,127.35 = 338,249.93 : x
  2. Step 2: Convert to fraction form
    624,729.92/862,127.35 = 338,249.93/x
  3. Step 3: Cross multiply
    624,729.92x = 862,127.35 × 338,249.93
  4. Step 4: Simplify right side
    624,729.92x = 291,614,510,632.32
  5. Step 5: Solve for x
    x = 291,614,510,632.32/624,729.92
  6. Step 6: Final answer
    x = 466,784.93

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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.