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Finding the Fourth Proportional to 475,860.37, 656,742.18 and 284,873.71

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Solution

The fourth proportional to 475,860.37, 656,742.18 and 284,873.71 is: 393,158.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,860.37 : 656,742.18 = 284,873.71 : x
  2. Step 2: Convert to fraction form
    475,860.37/656,742.18 = 284,873.71/x
  3. Step 3: Cross multiply
    475,860.37x = 656,742.18 × 284,873.71
  4. Step 4: Simplify right side
    475,860.37x = 187,088,581,330.09
  5. Step 5: Solve for x
    x = 187,088,581,330.09/475,860.37
  6. Step 6: Final answer
    x = 393,158.57

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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.