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Finding the Fourth Proportional to 869,489.60, 1,304,234.40 and 537,252.80

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Solution

The fourth proportional to 869,489.60, 1,304,234.40 and 537,252.80 is: 805,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,489.60 : 1,304,234.40 = 537,252.80 : x
  2. Step 2: Convert to fraction form
    869,489.60/1,304,234.40 = 537,252.80/x
  3. Step 3: Cross multiply
    869,489.60x = 1,304,234.40 × 537,252.80
  4. Step 4: Simplify right side
    869,489.60x = 700,703,583,256.32
  5. Step 5: Solve for x
    x = 700,703,583,256.32/869,489.60
  6. Step 6: Final answer
    x = 805,879.20

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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.