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Finding the Fourth Proportional to 475,859.37, 656,740.80 and 284,872.71

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Solution

The fourth proportional to 475,859.37, 656,740.80 and 284,872.71 is: 393,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,859.37 : 656,740.80 = 284,872.71 : x
  2. Step 2: Convert to fraction form
    475,859.37/656,740.80 = 284,872.71/x
  3. Step 3: Cross multiply
    475,859.37x = 656,740.80 × 284,872.71
  4. Step 4: Simplify right side
    475,859.37x = 187,087,531,463.57
  5. Step 5: Solve for x
    x = 187,087,531,463.57/475,859.37
  6. Step 6: Final answer
    x = 393,157.19

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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.