Home / 400,609.28-552,839.82-219,319.61

Finding the Fourth Proportional to 400,609.28, 552,839.82 and 219,319.61

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Solution

The fourth proportional to 400,609.28, 552,839.82 and 219,319.61 is: 302,660.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,609.28 : 552,839.82 = 219,319.61 : x
  2. Step 2: Convert to fraction form
    400,609.28/552,839.82 = 219,319.61/x
  3. Step 3: Cross multiply
    400,609.28x = 552,839.82 × 219,319.61
  4. Step 4: Simplify right side
    400,609.28x = 121,248,610,950.67
  5. Step 5: Solve for x
    x = 121,248,610,950.67/400,609.28
  6. Step 6: Final answer
    x = 302,660.52

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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.