Home / 713,090.20-1,069,635.30-313,306.60

Finding the Fourth Proportional to 713,090.20, 1,069,635.30 and 313,306.60

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Solution

The fourth proportional to 713,090.20, 1,069,635.30 and 313,306.60 is: 469,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,090.20 : 1,069,635.30 = 313,306.60 : x
  2. Step 2: Convert to fraction form
    713,090.20/1,069,635.30 = 313,306.60/x
  3. Step 3: Cross multiply
    713,090.20x = 1,069,635.30 × 313,306.60
  4. Step 4: Simplify right side
    713,090.20x = 335,123,799,082.98
  5. Step 5: Solve for x
    x = 335,123,799,082.98/713,090.20
  6. Step 6: Final answer
    x = 469,959.90

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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.