Home / 725,271.60-1,087,907.40-720,022.80

Finding the Fourth Proportional to 725,271.60, 1,087,907.40 and 720,022.80

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Solution

The fourth proportional to 725,271.60, 1,087,907.40 and 720,022.80 is: 1,080,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,271.60 : 1,087,907.40 = 720,022.80 : x
  2. Step 2: Convert to fraction form
    725,271.60/1,087,907.40 = 720,022.80/x
  3. Step 3: Cross multiply
    725,271.60x = 1,087,907.40 × 720,022.80
  4. Step 4: Simplify right side
    725,271.60x = 783,318,132,288.72
  5. Step 5: Solve for x
    x = 783,318,132,288.72/725,271.60
  6. Step 6: Final answer
    x = 1,080,034.20

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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.