Home / 787,240.20-1,179,110.70-647,272.20

Finding the Fourth Proportional to 787,240.20, 1,179,110.70 and 647,272.20

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Solution

The fourth proportional to 787,240.20, 1,179,110.70 and 647,272.20 is: 969,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,240.20 : 1,179,110.70 = 647,272.20 : x
  2. Step 2: Convert to fraction form
    787,240.20/1,179,110.70 = 647,272.20/x
  3. Step 3: Cross multiply
    787,240.20x = 1,179,110.70 × 647,272.20
  4. Step 4: Simplify right side
    787,240.20x = 763,205,576,832.54
  5. Step 5: Solve for x
    x = 763,205,576,832.54/787,240.20
  6. Step 6: Final answer
    x = 969,469.77

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1.5x scale

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.