Home / 750,007.20-1,121,730.30-670,619.10

Finding the Fourth Proportional to 750,007.20, 1,121,730.30 and 670,619.10

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Solution

The fourth proportional to 750,007.20, 1,121,730.30 and 670,619.10 is: 1,002,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,007.20 : 1,121,730.30 = 670,619.10 : x
  2. Step 2: Convert to fraction form
    750,007.20/1,121,730.30 = 670,619.10/x
  3. Step 3: Cross multiply
    750,007.20x = 1,121,730.30 × 670,619.10
  4. Step 4: Simplify right side
    750,007.20x = 752,253,764,228.73
  5. Step 5: Solve for x
    x = 752,253,764,228.73/750,007.20
  6. Step 6: Final answer
    x = 1,002,995.39

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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.