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Finding the Fourth Proportional to 656,524.80, 906,109.92 and 495,561.60

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Solution

The fourth proportional to 656,524.80, 906,109.92 and 495,561.60 is: 683,954.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,524.80 : 906,109.92 = 495,561.60 : x
  2. Step 2: Convert to fraction form
    656,524.80/906,109.92 = 495,561.60/x
  3. Step 3: Cross multiply
    656,524.80x = 906,109.92 × 495,561.60
  4. Step 4: Simplify right side
    656,524.80x = 449,033,281,731.07
  5. Step 5: Solve for x
    x = 449,033,281,731.07/656,524.80
  6. Step 6: Final answer
    x = 683,954.79

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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.