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Finding the Fourth Proportional to 624,403.92, 861,677.08 and 352,474.18

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Solution

The fourth proportional to 624,403.92, 861,677.08 and 352,474.18 is: 486,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,403.92 : 861,677.08 = 352,474.18 : x
  2. Step 2: Convert to fraction form
    624,403.92/861,677.08 = 352,474.18/x
  3. Step 3: Cross multiply
    624,403.92x = 861,677.08 × 352,474.18
  4. Step 4: Simplify right side
    624,403.92x = 303,718,922,197.79
  5. Step 5: Solve for x
    x = 303,718,922,197.79/624,403.92
  6. Step 6: Final answer
    x = 486,414.18

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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.