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Finding the Fourth Proportional to 624,543.28, 861,870.24 and 338,062.48

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Solution

The fourth proportional to 624,543.28, 861,870.24 and 338,062.48 is: 466,526.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,543.28 : 861,870.24 = 338,062.48 : x
  2. Step 2: Convert to fraction form
    624,543.28/861,870.24 = 338,062.48/x
  3. Step 3: Cross multiply
    624,543.28x = 861,870.24 × 338,062.48
  4. Step 4: Simplify right side
    624,543.28x = 291,365,990,772.60
  5. Step 5: Solve for x
    x = 291,365,990,772.60/624,543.28
  6. Step 6: Final answer
    x = 466,526.50

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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.