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Finding the Fourth Proportional to 999,712.80, 1,497,754.80 and 577,735.20

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Solution

The fourth proportional to 999,712.80, 1,497,754.80 and 577,735.20 is: 865,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,712.80 : 1,497,754.80 = 577,735.20 : x
  2. Step 2: Convert to fraction form
    999,712.80/1,497,754.80 = 577,735.20/x
  3. Step 3: Cross multiply
    999,712.80x = 1,497,754.80 × 577,735.20
  4. Step 4: Simplify right side
    999,712.80x = 865,305,668,928.96
  5. Step 5: Solve for x
    x = 865,305,668,928.96/999,712.80
  6. Step 6: Final answer
    x = 865,554.26

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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.