Home / 928,630.78-1,392,946.27-613,013.87

Finding the Fourth Proportional to 928,630.78, 1,392,946.27 and 613,013.87

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Solution

The fourth proportional to 928,630.78, 1,392,946.27 and 613,013.87 is: 919,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,630.78 : 1,392,946.27 = 613,013.87 : x
  2. Step 2: Convert to fraction form
    928,630.78/1,392,946.27 = 613,013.87/x
  3. Step 3: Cross multiply
    928,630.78x = 1,392,946.27 × 613,013.87
  4. Step 4: Simplify right side
    928,630.78x = 853,895,385,624.60
  5. Step 5: Solve for x
    x = 853,895,385,624.60/928,630.78
  6. Step 6: Final answer
    x = 919,520.88

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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.