Home / 816,002.40-1,224,003.60-772,456.80

Finding the Fourth Proportional to 816,002.40, 1,224,003.60 and 772,456.80

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Solution

The fourth proportional to 816,002.40, 1,224,003.60 and 772,456.80 is: 1,158,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,002.40 : 1,224,003.60 = 772,456.80 : x
  2. Step 2: Convert to fraction form
    816,002.40/1,224,003.60 = 772,456.80/x
  3. Step 3: Cross multiply
    816,002.40x = 1,224,003.60 × 772,456.80
  4. Step 4: Simplify right side
    816,002.40x = 945,489,904,044.48
  5. Step 5: Solve for x
    x = 945,489,904,044.48/816,002.40
  6. Step 6: Final answer
    x = 1,158,685.20

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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.