Home / 778,843.80-1,167,390.90-329,488.20

Finding the Fourth Proportional to 778,843.80, 1,167,390.90 and 329,488.20

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Solution

The fourth proportional to 778,843.80, 1,167,390.90 and 329,488.20 is: 493,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,843.80 : 1,167,390.90 = 329,488.20 : x
  2. Step 2: Convert to fraction form
    778,843.80/1,167,390.90 = 329,488.20/x
  3. Step 3: Cross multiply
    778,843.80x = 1,167,390.90 × 329,488.20
  4. Step 4: Simplify right side
    778,843.80x = 384,641,526,337.38
  5. Step 5: Solve for x
    x = 384,641,526,337.38/778,843.80
  6. Step 6: Final answer
    x = 493,862.22

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1.5x scale

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.