Home / 1,143,432.90-1,712,862.59-687,772.55

Finding the Fourth Proportional to 1,143,432.90, 1,712,862.59 and 687,772.55

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Solution

The fourth proportional to 1,143,432.90, 1,712,862.59 and 687,772.55 is: 1,030,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,432.90 : 1,712,862.59 = 687,772.55 : x
  2. Step 2: Convert to fraction form
    1,143,432.90/1,712,862.59 = 687,772.55/x
  3. Step 3: Cross multiply
    1,143,432.90x = 1,712,862.59 × 687,772.55
  4. Step 4: Simplify right side
    1,143,432.90x = 1,178,059,859,320.73
  5. Step 5: Solve for x
    x = 1,178,059,859,320.73/1,143,432.90
  6. Step 6: Final answer
    x = 1,030,283.33

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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.