Home / 871,432.52-1,202,689.43-489,459.29

Finding the Fourth Proportional to 871,432.52, 1,202,689.43 and 489,459.29

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Solution

The fourth proportional to 871,432.52, 1,202,689.43 and 489,459.29 is: 675,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,432.52 : 1,202,689.43 = 489,459.29 : x
  2. Step 2: Convert to fraction form
    871,432.52/1,202,689.43 = 489,459.29/x
  3. Step 3: Cross multiply
    871,432.52x = 1,202,689.43 × 489,459.29
  4. Step 4: Simplify right side
    871,432.52x = 588,667,518,728.68
  5. Step 5: Solve for x
    x = 588,667,518,728.68/871,432.52
  6. Step 6: Final answer
    x = 675,517.05

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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.