Home / 407,029.57-561,719.55-225,730.70

Finding the Fourth Proportional to 407,029.57, 561,719.55 and 225,730.70

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Solution

The fourth proportional to 407,029.57, 561,719.55 and 225,730.70 is: 311,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,029.57 : 561,719.55 = 225,730.70 : x
  2. Step 2: Convert to fraction form
    407,029.57/561,719.55 = 225,730.70/x
  3. Step 3: Cross multiply
    407,029.57x = 561,719.55 × 225,730.70
  4. Step 4: Simplify right side
    407,029.57x = 126,797,347,369.53
  5. Step 5: Solve for x
    x = 126,797,347,369.53/407,029.57
  6. Step 6: Final answer
    x = 311,518.76

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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.