Home / 418,589.10-627,869.43-181,931.76

Finding the Fourth Proportional to 418,589.10, 627,869.43 and 181,931.76

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Solution

The fourth proportional to 418,589.10, 627,869.43 and 181,931.76 is: 272,891.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,589.10 : 627,869.43 = 181,931.76 : x
  2. Step 2: Convert to fraction form
    418,589.10/627,869.43 = 181,931.76/x
  3. Step 3: Cross multiply
    418,589.10x = 627,869.43 × 181,931.76
  4. Step 4: Simplify right side
    418,589.10x = 114,229,390,450.10
  5. Step 5: Solve for x
    x = 114,229,390,450.10/418,589.10
  6. Step 6: Final answer
    x = 272,891.46

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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.