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Finding the Fourth Proportional to 695,657.80, 959,561.70 and 477,761.32

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Solution

The fourth proportional to 695,657.80, 959,561.70 and 477,761.32 is: 659,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,657.80 : 959,561.70 = 477,761.32 : x
  2. Step 2: Convert to fraction form
    695,657.80/959,561.70 = 477,761.32/x
  3. Step 3: Cross multiply
    695,657.80x = 959,561.70 × 477,761.32
  4. Step 4: Simplify right side
    695,657.80x = 458,441,464,413.44
  5. Step 5: Solve for x
    x = 458,441,464,413.44/695,657.80
  6. Step 6: Final answer
    x = 659,004.28

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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.