Home / 406,986.28-561,641.10-225,725.92

Finding the Fourth Proportional to 406,986.28, 561,641.10 and 225,725.92

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Solution

The fourth proportional to 406,986.28, 561,641.10 and 225,725.92 is: 311,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,986.28 : 561,641.10 = 225,725.92 : x
  2. Step 2: Convert to fraction form
    406,986.28/561,641.10 = 225,725.92/x
  3. Step 3: Cross multiply
    406,986.28x = 561,641.10 × 225,725.92
  4. Step 4: Simplify right side
    406,986.28x = 126,776,954,007.31
  5. Step 5: Solve for x
    x = 126,776,954,007.31/406,986.28
  6. Step 6: Final answer
    x = 311,501.79

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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.