Home / 721,778.36-1,082,175.47-366,106.55

Finding the Fourth Proportional to 721,778.36, 1,082,175.47 and 366,106.55

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Solution

The fourth proportional to 721,778.36, 1,082,175.47 and 366,106.55 is: 548,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,778.36 : 1,082,175.47 = 366,106.55 : x
  2. Step 2: Convert to fraction form
    721,778.36/1,082,175.47 = 366,106.55/x
  3. Step 3: Cross multiply
    721,778.36x = 1,082,175.47 × 366,106.55
  4. Step 4: Simplify right side
    721,778.36x = 396,191,525,985.80
  5. Step 5: Solve for x
    x = 396,191,525,985.80/721,778.36
  6. Step 6: Final answer
    x = 548,910.23

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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.