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Finding the Fourth Proportional to 722,248.92, 996,691.20 and 399,952.08

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Solution

The fourth proportional to 722,248.92, 996,691.20 and 399,952.08 is: 551,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,248.92 : 996,691.20 = 399,952.08 : x
  2. Step 2: Convert to fraction form
    722,248.92/996,691.20 = 399,952.08/x
  3. Step 3: Cross multiply
    722,248.92x = 996,691.20 × 399,952.08
  4. Step 4: Simplify right side
    722,248.92x = 398,628,718,557.70
  5. Step 5: Solve for x
    x = 398,628,718,557.70/722,248.92
  6. Step 6: Final answer
    x = 551,927.05

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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.