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Finding the Fourth Proportional to 1,304,831.52, 1,801,474.92 and 869,861.52

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Solution

The fourth proportional to 1,304,831.52, 1,801,474.92 and 869,861.52 is: 1,200,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,831.52 : 1,801,474.92 = 869,861.52 : x
  2. Step 2: Convert to fraction form
    1,304,831.52/1,801,474.92 = 869,861.52/x
  3. Step 3: Cross multiply
    1,304,831.52x = 1,801,474.92 × 869,861.52
  4. Step 4: Simplify right side
    1,304,831.52x = 1,567,033,712,153.08
  5. Step 5: Solve for x
    x = 1,567,033,712,153.08/1,304,831.52
  6. Step 6: Final answer
    x = 1,200,947.16

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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.