Home / 866,486.20-1,299,729.30-614,543.80

Finding the Fourth Proportional to 866,486.20, 1,299,729.30 and 614,543.80

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Solution

The fourth proportional to 866,486.20, 1,299,729.30 and 614,543.80 is: 921,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,486.20 : 1,299,729.30 = 614,543.80 : x
  2. Step 2: Convert to fraction form
    866,486.20/1,299,729.30 = 614,543.80/x
  3. Step 3: Cross multiply
    866,486.20x = 1,299,729.30 × 614,543.80
  4. Step 4: Simplify right side
    866,486.20x = 798,740,582,993.34
  5. Step 5: Solve for x
    x = 798,740,582,993.34/866,486.20
  6. Step 6: Final answer
    x = 921,815.70

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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.