Home / 778,891.80-1,167,462.90-329,536.20

Finding the Fourth Proportional to 778,891.80, 1,167,462.90 and 329,536.20

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Solution

The fourth proportional to 778,891.80, 1,167,462.90 and 329,536.20 is: 493,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,891.80 : 1,167,462.90 = 329,536.20 : x
  2. Step 2: Convert to fraction form
    778,891.80/1,167,462.90 = 329,536.20/x
  3. Step 3: Cross multiply
    778,891.80x = 1,167,462.90 × 329,536.20
  4. Step 4: Simplify right side
    778,891.80x = 384,721,287,706.98
  5. Step 5: Solve for x
    x = 384,721,287,706.98/778,891.80
  6. Step 6: Final answer
    x = 493,934.19

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Double scale
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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.