Home / 418,815.11-577,964.40-227,828.04

Finding the Fourth Proportional to 418,815.11, 577,964.40 and 227,828.04

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Solution

The fourth proportional to 418,815.11, 577,964.40 and 227,828.04 is: 314,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,815.11 : 577,964.40 = 227,828.04 : x
  2. Step 2: Convert to fraction form
    418,815.11/577,964.40 = 227,828.04/x
  3. Step 3: Cross multiply
    418,815.11x = 577,964.40 × 227,828.04
  4. Step 4: Simplify right side
    418,815.11x = 131,676,496,441.78
  5. Step 5: Solve for x
    x = 131,676,496,441.78/418,815.11
  6. Step 6: Final answer
    x = 314,402.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.