Home / 858,961.83-1,288,441.29-219,265.47

Finding the Fourth Proportional to 858,961.83, 1,288,441.29 and 219,265.47

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Solution

The fourth proportional to 858,961.83, 1,288,441.29 and 219,265.47 is: 328,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,961.83 : 1,288,441.29 = 219,265.47 : x
  2. Step 2: Convert to fraction form
    858,961.83/1,288,441.29 = 219,265.47/x
  3. Step 3: Cross multiply
    858,961.83x = 1,288,441.29 × 219,265.47
  4. Step 4: Simplify right side
    858,961.83x = 282,510,685,019.26
  5. Step 5: Solve for x
    x = 282,510,685,019.26/858,961.83
  6. Step 6: Final answer
    x = 328,897.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.