Home / 378,801.24-522,775.26-217,712.52

Finding the Fourth Proportional to 378,801.24, 522,775.26 and 217,712.52

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Solution

The fourth proportional to 378,801.24, 522,775.26 and 217,712.52 is: 300,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,801.24 : 522,775.26 = 217,712.52 : x
  2. Step 2: Convert to fraction form
    378,801.24/522,775.26 = 217,712.52/x
  3. Step 3: Cross multiply
    378,801.24x = 522,775.26 × 217,712.52
  4. Step 4: Simplify right side
    378,801.24x = 113,814,719,248.26
  5. Step 5: Solve for x
    x = 113,814,719,248.26/378,801.24
  6. Step 6: Final answer
    x = 300,460.26

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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.