Home / 378,799.42-522,832.67-217,747.90

Finding the Fourth Proportional to 378,799.42, 522,832.67 and 217,747.90

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Solution

The fourth proportional to 378,799.42, 522,832.67 and 217,747.90 is: 300,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,799.42 : 522,832.67 = 217,747.90 : x
  2. Step 2: Convert to fraction form
    378,799.42/522,832.67 = 217,747.90/x
  3. Step 3: Cross multiply
    378,799.42x = 522,832.67 × 217,747.90
  4. Step 4: Simplify right side
    378,799.42x = 113,845,715,943.89
  5. Step 5: Solve for x
    x = 113,845,715,943.89/378,799.42
  6. Step 6: Final answer
    x = 300,543.53

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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.