Home / 475,890.43-656,747.18-261,039.55

Finding the Fourth Proportional to 475,890.43, 656,747.18 and 261,039.55

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Solution

The fourth proportional to 475,890.43, 656,747.18 and 261,039.55 is: 360,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,890.43 : 656,747.18 = 261,039.55 : x
  2. Step 2: Convert to fraction form
    475,890.43/656,747.18 = 261,039.55/x
  3. Step 3: Cross multiply
    475,890.43x = 656,747.18 × 261,039.55
  4. Step 4: Simplify right side
    475,890.43x = 171,436,988,330.97
  5. Step 5: Solve for x
    x = 171,436,988,330.97/475,890.43
  6. Step 6: Final answer
    x = 360,244.66

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1.5x scale

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.