Home / 406,911.28-561,544.31-225,630.85

Finding the Fourth Proportional to 406,911.28, 561,544.31 and 225,630.85

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Solution

The fourth proportional to 406,911.28, 561,544.31 and 225,630.85 is: 311,374.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,911.28 : 561,544.31 = 225,630.85 : x
  2. Step 2: Convert to fraction form
    406,911.28/561,544.31 = 225,630.85/x
  3. Step 3: Cross multiply
    406,911.28x = 561,544.31 × 225,630.85
  4. Step 4: Simplify right side
    406,911.28x = 126,701,719,977.96
  5. Step 5: Solve for x
    x = 126,701,719,977.96/406,911.28
  6. Step 6: Final answer
    x = 311,374.31

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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.