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Finding the Fourth Proportional to 656,892.44, 906,523.37 and 385,037.40

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Solution

The fourth proportional to 656,892.44, 906,523.37 and 385,037.40 is: 531,358.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,892.44 : 906,523.37 = 385,037.40 : x
  2. Step 2: Convert to fraction form
    656,892.44/906,523.37 = 385,037.40/x
  3. Step 3: Cross multiply
    656,892.44x = 906,523.37 × 385,037.40
  4. Step 4: Simplify right side
    656,892.44x = 349,045,399,498.85
  5. Step 5: Solve for x
    x = 349,045,399,498.85/656,892.44
  6. Step 6: Final answer
    x = 531,358.53

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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.