Home / 407,028.47-561,632.00-225,711.59

Finding the Fourth Proportional to 407,028.47, 561,632.00 and 225,711.59

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Solution

The fourth proportional to 407,028.47, 561,632.00 and 225,711.59 is: 311,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,028.47 : 561,632.00 = 225,711.59 : x
  2. Step 2: Convert to fraction form
    407,028.47/561,632.00 = 225,711.59/x
  3. Step 3: Cross multiply
    407,028.47x = 561,632.00 × 225,711.59
  4. Step 4: Simplify right side
    407,028.47x = 126,766,847,778.16
  5. Step 5: Solve for x
    x = 126,766,847,778.16/407,028.47
  6. Step 6: Final answer
    x = 311,444.67

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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.