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Finding the Fourth Proportional to 475,857.37, 656,738.04 and 284,870.71

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Solution

The fourth proportional to 475,857.37, 656,738.04 and 284,870.71 is: 393,154.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,857.37 : 656,738.04 = 284,870.71 : x
  2. Step 2: Convert to fraction form
    475,857.37/656,738.04 = 284,870.71/x
  3. Step 3: Cross multiply
    475,857.37x = 656,738.04 × 284,870.71
  4. Step 4: Simplify right side
    475,857.37x = 187,085,431,738.81
  5. Step 5: Solve for x
    x = 187,085,431,738.81/475,857.37
  6. Step 6: Final answer
    x = 393,154.43

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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.