Home / 925,726.05-1,388,619.75-318,508.53

Finding the Fourth Proportional to 925,726.05, 1,388,619.75 and 318,508.53

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Solution

The fourth proportional to 925,726.05, 1,388,619.75 and 318,508.53 is: 477,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,726.05 : 1,388,619.75 = 318,508.53 : x
  2. Step 2: Convert to fraction form
    925,726.05/1,388,619.75 = 318,508.53/x
  3. Step 3: Cross multiply
    925,726.05x = 1,388,619.75 × 318,508.53
  4. Step 4: Simplify right side
    925,726.05x = 442,287,235,301.47
  5. Step 5: Solve for x
    x = 442,287,235,301.47/925,726.05
  6. Step 6: Final answer
    x = 477,773.35

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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.