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Finding the Fourth Proportional to 506,177, 698,463.62 and 279,791.72

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Solution

The fourth proportional to 506,177, 698,463.62 and 279,791.72 is: 386,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,177 : 698,463.62 = 279,791.72 : x
  2. Step 2: Convert to fraction form
    506,177/698,463.62 = 279,791.72/x
  3. Step 3: Cross multiply
    506,177x = 698,463.62 × 279,791.72
  4. Step 4: Simplify right side
    506,177x = 195,424,337,597.23
  5. Step 5: Solve for x
    x = 195,424,337,597.23/506,177
  6. Step 6: Final answer
    x = 386,079.05

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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.