Home / 928,142.40-1,390,885.20-527,937.60

Finding the Fourth Proportional to 928,142.40, 1,390,885.20 and 527,937.60

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Solution

The fourth proportional to 928,142.40, 1,390,885.20 and 527,937.60 is: 791,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,142.40 : 1,390,885.20 = 527,937.60 : x
  2. Step 2: Convert to fraction form
    928,142.40/1,390,885.20 = 527,937.60/x
  3. Step 3: Cross multiply
    928,142.40x = 1,390,885.20 × 527,937.60
  4. Step 4: Simplify right side
    928,142.40x = 734,300,594,363.52
  5. Step 5: Solve for x
    x = 734,300,594,363.52/928,142.40
  6. Step 6: Final answer
    x = 791,150.79

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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.