Home / 725,999.40-1,088,999.10-649,891.80

Finding the Fourth Proportional to 725,999.40, 1,088,999.10 and 649,891.80

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Solution

The fourth proportional to 725,999.40, 1,088,999.10 and 649,891.80 is: 974,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,999.40 : 1,088,999.10 = 649,891.80 : x
  2. Step 2: Convert to fraction form
    725,999.40/1,088,999.10 = 649,891.80/x
  3. Step 3: Cross multiply
    725,999.40x = 1,088,999.10 × 649,891.80
  4. Step 4: Simplify right side
    725,999.40x = 707,731,585,297.38
  5. Step 5: Solve for x
    x = 707,731,585,297.38/725,999.40
  6. Step 6: Final answer
    x = 974,837.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.