Home / 865,789.20-1,298,683.80-655,837.20

Finding the Fourth Proportional to 865,789.20, 1,298,683.80 and 655,837.20

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Solution

The fourth proportional to 865,789.20, 1,298,683.80 and 655,837.20 is: 983,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,789.20 : 1,298,683.80 = 655,837.20 : x
  2. Step 2: Convert to fraction form
    865,789.20/1,298,683.80 = 655,837.20/x
  3. Step 3: Cross multiply
    865,789.20x = 1,298,683.80 × 655,837.20
  4. Step 4: Simplify right side
    865,789.20x = 851,725,147,077.36
  5. Step 5: Solve for x
    x = 851,725,147,077.36/865,789.20
  6. Step 6: Final answer
    x = 983,755.80

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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.