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Finding the Fourth Proportional to 866,843.70, 1,300,265.55 and 552,693.30

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Solution

The fourth proportional to 866,843.70, 1,300,265.55 and 552,693.30 is: 829,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,843.70 : 1,300,265.55 = 552,693.30 : x
  2. Step 2: Convert to fraction form
    866,843.70/1,300,265.55 = 552,693.30/x
  3. Step 3: Cross multiply
    866,843.70x = 1,300,265.55 × 552,693.30
  4. Step 4: Simplify right side
    866,843.70x = 718,648,057,705.82
  5. Step 5: Solve for x
    x = 718,648,057,705.82/866,843.70
  6. Step 6: Final answer
    x = 829,039.95

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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.