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Finding the Fourth Proportional to 518,806, 715,952.28 and 292,451.50

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Solution

The fourth proportional to 518,806, 715,952.28 and 292,451.50 is: 403,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,806 : 715,952.28 = 292,451.50 : x
  2. Step 2: Convert to fraction form
    518,806/715,952.28 = 292,451.50/x
  3. Step 3: Cross multiply
    518,806x = 715,952.28 × 292,451.50
  4. Step 4: Simplify right side
    518,806x = 209,381,318,214.42
  5. Step 5: Solve for x
    x = 209,381,318,214.42/518,806
  6. Step 6: Final answer
    x = 403,583.07

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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.