Home / 728,081.60-1,092,122.40-662,763.20

Finding the Fourth Proportional to 728,081.60, 1,092,122.40 and 662,763.20

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Solution

The fourth proportional to 728,081.60, 1,092,122.40 and 662,763.20 is: 994,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,081.60 : 1,092,122.40 = 662,763.20 : x
  2. Step 2: Convert to fraction form
    728,081.60/1,092,122.40 = 662,763.20/x
  3. Step 3: Cross multiply
    728,081.60x = 1,092,122.40 × 662,763.20
  4. Step 4: Simplify right side
    728,081.60x = 723,818,536,615.68
  5. Step 5: Solve for x
    x = 723,818,536,615.68/728,081.60
  6. Step 6: Final answer
    x = 994,144.80

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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.