Home / 928,969.60-1,393,119.95-321,592.72

Finding the Fourth Proportional to 928,969.60, 1,393,119.95 and 321,592.72

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Solution

The fourth proportional to 928,969.60, 1,393,119.95 and 321,592.72 is: 482,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,969.60 : 1,393,119.95 = 321,592.72 : x
  2. Step 2: Convert to fraction form
    928,969.60/1,393,119.95 = 321,592.72/x
  3. Step 3: Cross multiply
    928,969.60x = 1,393,119.95 × 321,592.72
  4. Step 4: Simplify right side
    928,969.60x = 448,017,234,006.76
  5. Step 5: Solve for x
    x = 448,017,234,006.76/928,969.60
  6. Step 6: Final answer
    x = 482,273.30

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1.5x scale

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.