Home / 419,736.24-579,228.48-228,751.20

Finding the Fourth Proportional to 419,736.24, 579,228.48 and 228,751.20

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Solution

The fourth proportional to 419,736.24, 579,228.48 and 228,751.20 is: 315,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,736.24 : 579,228.48 = 228,751.20 : x
  2. Step 2: Convert to fraction form
    419,736.24/579,228.48 = 228,751.20/x
  3. Step 3: Cross multiply
    419,736.24x = 579,228.48 × 228,751.20
  4. Step 4: Simplify right side
    419,736.24x = 132,499,209,874.18
  5. Step 5: Solve for x
    x = 132,499,209,874.18/419,736.24
  6. Step 6: Final answer
    x = 315,672.55

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1.5x scale

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.