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Finding the Fourth Proportional to 518,825.50, 715,990.13 and 292,471

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Solution

The fourth proportional to 518,825.50, 715,990.13 and 292,471 is: 403,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,825.50 : 715,990.13 = 292,471 : x
  2. Step 2: Convert to fraction form
    518,825.50/715,990.13 = 292,471/x
  3. Step 3: Cross multiply
    518,825.50x = 715,990.13 × 292,471
  4. Step 4: Simplify right side
    518,825.50x = 209,406,347,848.88
  5. Step 5: Solve for x
    x = 209,406,347,848.88/518,825.50
  6. Step 6: Final answer
    x = 403,616.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.