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Finding the Fourth Proportional to 475,689.68, 656,796.22 and 306,219.06

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Solution

The fourth proportional to 475,689.68, 656,796.22 and 306,219.06 is: 422,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,689.68 : 656,796.22 = 306,219.06 : x
  2. Step 2: Convert to fraction form
    475,689.68/656,796.22 = 306,219.06/x
  3. Step 3: Cross multiply
    475,689.68x = 656,796.22 × 306,219.06
  4. Step 4: Simplify right side
    475,689.68x = 201,123,521,099.95
  5. Step 5: Solve for x
    x = 201,123,521,099.95/475,689.68
  6. Step 6: Final answer
    x = 422,804.05

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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.