Home / 485,129.40-727,694.10-298,246.20

Finding the Fourth Proportional to 485,129.40, 727,694.10 and 298,246.20

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Solution

The fourth proportional to 485,129.40, 727,694.10 and 298,246.20 is: 447,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,129.40 : 727,694.10 = 298,246.20 : x
  2. Step 2: Convert to fraction form
    485,129.40/727,694.10 = 298,246.20/x
  3. Step 3: Cross multiply
    485,129.40x = 727,694.10 × 298,246.20
  4. Step 4: Simplify right side
    485,129.40x = 217,032,000,087.42
  5. Step 5: Solve for x
    x = 217,032,000,087.42/485,129.40
  6. Step 6: Final answer
    x = 447,369.30

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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.