Home / 1,320,801.10-1,981,201.65-323,529.10

Finding the Fourth Proportional to 1,320,801.10, 1,981,201.65 and 323,529.10

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Solution

The fourth proportional to 1,320,801.10, 1,981,201.65 and 323,529.10 is: 485,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,801.10 : 1,981,201.65 = 323,529.10 : x
  2. Step 2: Convert to fraction form
    1,320,801.10/1,981,201.65 = 323,529.10/x
  3. Step 3: Cross multiply
    1,320,801.10x = 1,981,201.65 × 323,529.10
  4. Step 4: Simplify right side
    1,320,801.10x = 640,976,386,743.02
  5. Step 5: Solve for x
    x = 640,976,386,743.02/1,320,801.10
  6. Step 6: Final answer
    x = 485,293.65

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Double scale
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Similar ratio
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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.