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Finding the Fourth Proportional to 506,269.89, 698,666.45 and 279,923.49

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Solution

The fourth proportional to 506,269.89, 698,666.45 and 279,923.49 is: 386,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,269.89 : 698,666.45 = 279,923.49 : x
  2. Step 2: Convert to fraction form
    506,269.89/698,666.45 = 279,923.49/x
  3. Step 3: Cross multiply
    506,269.89x = 698,666.45 × 279,923.49
  4. Step 4: Simplify right side
    506,269.89x = 195,573,149,630.29
  5. Step 5: Solve for x
    x = 195,573,149,630.29/506,269.89
  6. Step 6: Final answer
    x = 386,302.16

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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.