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Finding the Fourth Proportional to 706,861.32, 976,057.22 and 655,575.36

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Solution

The fourth proportional to 706,861.32, 976,057.22 and 655,575.36 is: 905,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,861.32 : 976,057.22 = 655,575.36 : x
  2. Step 2: Convert to fraction form
    706,861.32/976,057.22 = 655,575.36/x
  3. Step 3: Cross multiply
    706,861.32x = 976,057.22 × 655,575.36
  4. Step 4: Simplify right side
    706,861.32x = 639,879,063,382.10
  5. Step 5: Solve for x
    x = 639,879,063,382.10/706,861.32
  6. Step 6: Final answer
    x = 905,239.89

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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.