Home / 772,498.80-1,158,748.20-720,010.80

Finding the Fourth Proportional to 772,498.80, 1,158,748.20 and 720,010.80

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Solution

The fourth proportional to 772,498.80, 1,158,748.20 and 720,010.80 is: 1,080,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,498.80 : 1,158,748.20 = 720,010.80 : x
  2. Step 2: Convert to fraction form
    772,498.80/1,158,748.20 = 720,010.80/x
  3. Step 3: Cross multiply
    772,498.80x = 1,158,748.20 × 720,010.80
  4. Step 4: Simplify right side
    772,498.80x = 834,311,218,480.56
  5. Step 5: Solve for x
    x = 834,311,218,480.56/772,498.80
  6. Step 6: Final answer
    x = 1,080,016.20

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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.