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Finding the Fourth Proportional to 503,042.22, 694,296.88 and 288,326.20

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Solution

The fourth proportional to 503,042.22, 694,296.88 and 288,326.20 is: 397,946.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,042.22 : 694,296.88 = 288,326.20 : x
  2. Step 2: Convert to fraction form
    503,042.22/694,296.88 = 288,326.20/x
  3. Step 3: Cross multiply
    503,042.22x = 694,296.88 × 288,326.20
  4. Step 4: Simplify right side
    503,042.22x = 200,183,981,082.26
  5. Step 5: Solve for x
    x = 200,183,981,082.26/503,042.22
  6. Step 6: Final answer
    x = 397,946.68

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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.