Home / 1,261,265.25-1,740,545.59-688,305.43

Finding the Fourth Proportional to 1,261,265.25, 1,740,545.59 and 688,305.43

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Solution

The fourth proportional to 1,261,265.25, 1,740,545.59 and 688,305.43 is: 949,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,265.25 : 1,740,545.59 = 688,305.43 : x
  2. Step 2: Convert to fraction form
    1,261,265.25/1,740,545.59 = 688,305.43/x
  3. Step 3: Cross multiply
    1,261,265.25x = 1,740,545.59 × 688,305.43
  4. Step 4: Simplify right side
    1,261,265.25x = 1,198,026,980,759.55
  5. Step 5: Solve for x
    x = 1,198,026,980,759.55/1,261,265.25
  6. Step 6: Final answer
    x = 949,861.25

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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.