Home / 419,739.12-579,223.08-228,748.38

Finding the Fourth Proportional to 419,739.12, 579,223.08 and 228,748.38

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Solution

The fourth proportional to 419,739.12, 579,223.08 and 228,748.38 is: 315,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,739.12 : 579,223.08 = 228,748.38 : x
  2. Step 2: Convert to fraction form
    419,739.12/579,223.08 = 228,748.38/x
  3. Step 3: Cross multiply
    419,739.12x = 579,223.08 × 228,748.38
  4. Step 4: Simplify right side
    419,739.12x = 132,496,341,208.61
  5. Step 5: Solve for x
    x = 132,496,341,208.61/419,739.12
  6. Step 6: Final answer
    x = 315,663.55

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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.