Home / 781,348.11-1,172,067.54-301,578.63

Finding the Fourth Proportional to 781,348.11, 1,172,067.54 and 301,578.63

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Solution

The fourth proportional to 781,348.11, 1,172,067.54 and 301,578.63 is: 452,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,348.11 : 1,172,067.54 = 301,578.63 : x
  2. Step 2: Convert to fraction form
    781,348.11/1,172,067.54 = 301,578.63/x
  3. Step 3: Cross multiply
    781,348.11x = 1,172,067.54 × 301,578.63
  4. Step 4: Simplify right side
    781,348.11x = 353,470,517,454.50
  5. Step 5: Solve for x
    x = 353,470,517,454.50/781,348.11
  6. Step 6: Final answer
    x = 452,385.45

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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.