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Finding the Fourth Proportional to 611,568.38, 917,657.33 and 274,849.76

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Solution

The fourth proportional to 611,568.38, 917,657.33 and 274,849.76 is: 412,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,568.38 : 917,657.33 = 274,849.76 : x
  2. Step 2: Convert to fraction form
    611,568.38/917,657.33 = 274,849.76/x
  3. Step 3: Cross multiply
    611,568.38x = 917,657.33 × 274,849.76
  4. Step 4: Simplify right side
    611,568.38x = 252,217,896,912.74
  5. Step 5: Solve for x
    x = 252,217,896,912.74/611,568.38
  6. Step 6: Final answer
    x = 412,411.60

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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.