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Finding the Fourth Proportional to 406,340.76, 560,730.78 and 225,040.44

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Solution

The fourth proportional to 406,340.76, 560,730.78 and 225,040.44 is: 310,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,340.76 : 560,730.78 = 225,040.44 : x
  2. Step 2: Convert to fraction form
    406,340.76/560,730.78 = 225,040.44/x
  3. Step 3: Cross multiply
    406,340.76x = 560,730.78 × 225,040.44
  4. Step 4: Simplify right side
    406,340.76x = 126,187,101,452.74
  5. Step 5: Solve for x
    x = 126,187,101,452.74/406,340.76
  6. Step 6: Final answer
    x = 310,545.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.