Home / 485,072.22-664,552.11-466,890.90

Finding the Fourth Proportional to 485,072.22, 664,552.11 and 466,890.90

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Solution

The fourth proportional to 485,072.22, 664,552.11 and 466,890.90 is: 639,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,072.22 : 664,552.11 = 466,890.90 : x
  2. Step 2: Convert to fraction form
    485,072.22/664,552.11 = 466,890.90/x
  3. Step 3: Cross multiply
    485,072.22x = 664,552.11 × 466,890.90
  4. Step 4: Simplify right side
    485,072.22x = 310,273,332,734.80
  5. Step 5: Solve for x
    x = 310,273,332,734.80/485,072.22
  6. Step 6: Final answer
    x = 639,643.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.