Home / 928,905.35-1,393,023.74-321,528.63

Finding the Fourth Proportional to 928,905.35, 1,393,023.74 and 321,528.63

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Solution

The fourth proportional to 928,905.35, 1,393,023.74 and 321,528.63 is: 482,177.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,905.35 : 1,393,023.74 = 321,528.63 : x
  2. Step 2: Convert to fraction form
    928,905.35/1,393,023.74 = 321,528.63/x
  3. Step 3: Cross multiply
    928,905.35x = 1,393,023.74 × 321,528.63
  4. Step 4: Simplify right side
    928,905.35x = 447,897,013,072.03
  5. Step 5: Solve for x
    x = 447,897,013,072.03/928,905.35
  6. Step 6: Final answer
    x = 482,177.24

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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.