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Finding the Fourth Proportional to 656,631.92, 906,165.90 and 370,152

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Solution

The fourth proportional to 656,631.92, 906,165.90 and 370,152 is: 510,817.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,631.92 : 906,165.90 = 370,152 : x
  2. Step 2: Convert to fraction form
    656,631.92/906,165.90 = 370,152/x
  3. Step 3: Cross multiply
    656,631.92x = 906,165.90 × 370,152
  4. Step 4: Simplify right side
    656,631.92x = 335,419,120,216.80
  5. Step 5: Solve for x
    x = 335,419,120,216.80/656,631.92
  6. Step 6: Final answer
    x = 510,817.57

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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.