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Finding the Fourth Proportional to 492,158.88, 679,191.84 and 277,306.56

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Solution

The fourth proportional to 492,158.88, 679,191.84 and 277,306.56 is: 382,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,158.88 : 679,191.84 = 277,306.56 : x
  2. Step 2: Convert to fraction form
    492,158.88/679,191.84 = 277,306.56/x
  3. Step 3: Cross multiply
    492,158.88x = 679,191.84 × 277,306.56
  4. Step 4: Simplify right side
    492,158.88x = 188,344,352,730.47
  5. Step 5: Solve for x
    x = 188,344,352,730.47/492,158.88
  6. Step 6: Final answer
    x = 382,690.14

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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.