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Finding the Fourth Proportional to 406,512.61, 560,991.90 and 225,227.39

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Solution

The fourth proportional to 406,512.61, 560,991.90 and 225,227.39 is: 310,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,512.61 : 560,991.90 = 225,227.39 : x
  2. Step 2: Convert to fraction form
    406,512.61/560,991.90 = 225,227.39/x
  3. Step 3: Cross multiply
    406,512.61x = 560,991.90 × 225,227.39
  4. Step 4: Simplify right side
    406,512.61x = 126,350,742,643.36
  5. Step 5: Solve for x
    x = 126,350,742,643.36/406,512.61
  6. Step 6: Final answer
    x = 310,816.30

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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.