Home / 485,763.30-727,770.15-298,556.10

Finding the Fourth Proportional to 485,763.30, 727,770.15 and 298,556.10

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Solution

The fourth proportional to 485,763.30, 727,770.15 and 298,556.10 is: 447,296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,763.30 : 727,770.15 = 298,556.10 : x
  2. Step 2: Convert to fraction form
    485,763.30/727,770.15 = 298,556.10/x
  3. Step 3: Cross multiply
    485,763.30x = 727,770.15 × 298,556.10
  4. Step 4: Simplify right side
    485,763.30x = 217,280,217,680.42
  5. Step 5: Solve for x
    x = 217,280,217,680.42/485,763.30
  6. Step 6: Final answer
    x = 447,296.49

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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.