Home / 481,031.43-721,570.38-126,045.79

Finding the Fourth Proportional to 481,031.43, 721,570.38 and 126,045.79

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Solution

The fourth proportional to 481,031.43, 721,570.38 and 126,045.79 is: 189,074.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,031.43 : 721,570.38 = 126,045.79 : x
  2. Step 2: Convert to fraction form
    481,031.43/721,570.38 = 126,045.79/x
  3. Step 3: Cross multiply
    481,031.43x = 721,570.38 × 126,045.79
  4. Step 4: Simplify right side
    481,031.43x = 90,950,906,311.10
  5. Step 5: Solve for x
    x = 90,950,906,311.10/481,031.43
  6. Step 6: Final answer
    x = 189,074.77

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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.