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Finding the Fourth Proportional to 695,656.80, 959,560.32 and 477,760.32

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Solution

The fourth proportional to 695,656.80, 959,560.32 and 477,760.32 is: 659,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,656.80 : 959,560.32 = 477,760.32 : x
  2. Step 2: Convert to fraction form
    695,656.80/959,560.32 = 477,760.32/x
  3. Step 3: Cross multiply
    695,656.80x = 959,560.32 × 477,760.32
  4. Step 4: Simplify right side
    695,656.80x = 458,439,845,542.50
  5. Step 5: Solve for x
    x = 458,439,845,542.50/695,656.80
  6. Step 6: Final answer
    x = 659,002.90

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1.5x scale

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.