Home / 646,375.41-969,748.10-220,005.18

Finding the Fourth Proportional to 646,375.41, 969,748.10 and 220,005.18

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Solution

The fourth proportional to 646,375.41, 969,748.10 and 220,005.18 is: 330,070.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,375.41 : 969,748.10 = 220,005.18 : x
  2. Step 2: Convert to fraction form
    646,375.41/969,748.10 = 220,005.18/x
  3. Step 3: Cross multiply
    646,375.41x = 969,748.10 × 220,005.18
  4. Step 4: Simplify right side
    646,375.41x = 213,349,604,195.13
  5. Step 5: Solve for x
    x = 213,349,604,195.13/646,375.41
  6. Step 6: Final answer
    x = 330,070.73

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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.