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Finding the Fourth Proportional to 656,580.30, 906,026.52 and 370,170.78

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Solution

The fourth proportional to 656,580.30, 906,026.52 and 370,170.78 is: 510,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,580.30 : 906,026.52 = 370,170.78 : x
  2. Step 2: Convert to fraction form
    656,580.30/906,026.52 = 370,170.78/x
  3. Step 3: Cross multiply
    656,580.30x = 906,026.52 × 370,170.78
  4. Step 4: Simplify right side
    656,580.30x = 335,384,543,609.09
  5. Step 5: Solve for x
    x = 335,384,543,609.09/656,580.30
  6. Step 6: Final answer
    x = 510,805.07

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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.