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Finding the Fourth Proportional to 624,874.18, 862,327.20 and 338,394.73

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Solution

The fourth proportional to 624,874.18, 862,327.20 and 338,394.73 is: 466,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,874.18 : 862,327.20 = 338,394.73 : x
  2. Step 2: Convert to fraction form
    624,874.18/862,327.20 = 338,394.73/x
  3. Step 3: Cross multiply
    624,874.18x = 862,327.20 × 338,394.73
  4. Step 4: Simplify right side
    624,874.18x = 291,806,980,015.66
  5. Step 5: Solve for x
    x = 291,806,980,015.66/624,874.18
  6. Step 6: Final answer
    x = 466,985.18

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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.