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Finding the Fourth Proportional to 802,590.30, 1,203,885.45 and 715,499.10

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Solution

The fourth proportional to 802,590.30, 1,203,885.45 and 715,499.10 is: 1,073,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,590.30 : 1,203,885.45 = 715,499.10 : x
  2. Step 2: Convert to fraction form
    802,590.30/1,203,885.45 = 715,499.10/x
  3. Step 3: Cross multiply
    802,590.30x = 1,203,885.45 × 715,499.10
  4. Step 4: Simplify right side
    802,590.30x = 861,378,955,978.10
  5. Step 5: Solve for x
    x = 861,378,955,978.10/802,590.30
  6. Step 6: Final answer
    x = 1,073,248.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.