Home / 407,027.72-561,630.96-225,710.84

Finding the Fourth Proportional to 407,027.72, 561,630.96 and 225,710.84

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Solution

The fourth proportional to 407,027.72, 561,630.96 and 225,710.84 is: 311,443.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,027.72 : 561,630.96 = 225,710.84 : x
  2. Step 2: Convert to fraction form
    407,027.72/561,630.96 = 225,710.84/x
  3. Step 3: Cross multiply
    407,027.72x = 561,630.96 × 225,710.84
  4. Step 4: Simplify right side
    407,027.72x = 126,766,192,943.45
  5. Step 5: Solve for x
    x = 126,766,192,943.45/407,027.72
  6. Step 6: Final answer
    x = 311,443.64

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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.