Home / 727,540.80-1,091,311.20-699,547.20

Finding the Fourth Proportional to 727,540.80, 1,091,311.20 and 699,547.20

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Solution

The fourth proportional to 727,540.80, 1,091,311.20 and 699,547.20 is: 1,049,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,540.80 : 1,091,311.20 = 699,547.20 : x
  2. Step 2: Convert to fraction form
    727,540.80/1,091,311.20 = 699,547.20/x
  3. Step 3: Cross multiply
    727,540.80x = 1,091,311.20 × 699,547.20
  4. Step 4: Simplify right side
    727,540.80x = 763,423,694,288.64
  5. Step 5: Solve for x
    x = 763,423,694,288.64/727,540.80
  6. Step 6: Final answer
    x = 1,049,320.80

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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.