Home / 465,941.28-698,874.29-128,988.10

Finding the Fourth Proportional to 465,941.28, 698,874.29 and 128,988.10

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Solution

The fourth proportional to 465,941.28, 698,874.29 and 128,988.10 is: 193,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,941.28 : 698,874.29 = 128,988.10 : x
  2. Step 2: Convert to fraction form
    465,941.28/698,874.29 = 128,988.10/x
  3. Step 3: Cross multiply
    465,941.28x = 698,874.29 × 128,988.10
  4. Step 4: Simplify right side
    465,941.28x = 90,146,466,805.95
  5. Step 5: Solve for x
    x = 90,146,466,805.95/465,941.28
  6. Step 6: Final answer
    x = 193,471.73

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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.