Home / 407,122.42-561,837.96-225,828.46

Finding the Fourth Proportional to 407,122.42, 561,837.96 and 225,828.46

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Solution

The fourth proportional to 407,122.42, 561,837.96 and 225,828.46 is: 311,648.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,122.42 : 561,837.96 = 225,828.46 : x
  2. Step 2: Convert to fraction form
    407,122.42/561,837.96 = 225,828.46/x
  3. Step 3: Cross multiply
    407,122.42x = 561,837.96 × 225,828.46
  4. Step 4: Simplify right side
    407,122.42x = 126,879,001,276.34
  5. Step 5: Solve for x
    x = 126,879,001,276.34/407,122.42
  6. Step 6: Final answer
    x = 311,648.28

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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.