Home / 772,708.80-1,157,680.80-662,116.80

Finding the Fourth Proportional to 772,708.80, 1,157,680.80 and 662,116.80

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Solution

The fourth proportional to 772,708.80, 1,157,680.80 and 662,116.80 is: 991,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,708.80 : 1,157,680.80 = 662,116.80 : x
  2. Step 2: Convert to fraction form
    772,708.80/1,157,680.80 = 662,116.80/x
  3. Step 3: Cross multiply
    772,708.80x = 1,157,680.80 × 662,116.80
  4. Step 4: Simplify right side
    772,708.80x = 766,519,906,717.44
  5. Step 5: Solve for x
    x = 766,519,906,717.44/772,708.80
  6. Step 6: Final answer
    x = 991,990.65

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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.