Home / 712,930.60-1,070,000.70-292,508.20

Finding the Fourth Proportional to 712,930.60, 1,070,000.70 and 292,508.20

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Solution

The fourth proportional to 712,930.60, 1,070,000.70 and 292,508.20 is: 439,010.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,930.60 : 1,070,000.70 = 292,508.20 : x
  2. Step 2: Convert to fraction form
    712,930.60/1,070,000.70 = 292,508.20/x
  3. Step 3: Cross multiply
    712,930.60x = 1,070,000.70 × 292,508.20
  4. Step 4: Simplify right side
    712,930.60x = 312,983,978,755.74
  5. Step 5: Solve for x
    x = 312,983,978,755.74/712,930.60
  6. Step 6: Final answer
    x = 439,010.44

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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.