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Finding the Fourth Proportional to 807,326.28, 1,211,048.28 and 327,323.52

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Solution

The fourth proportional to 807,326.28, 1,211,048.28 and 327,323.52 is: 491,009.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,326.28 : 1,211,048.28 = 327,323.52 : x
  2. Step 2: Convert to fraction form
    807,326.28/1,211,048.28 = 327,323.52/x
  3. Step 3: Cross multiply
    807,326.28x = 1,211,048.28 × 327,323.52
  4. Step 4: Simplify right side
    807,326.28x = 396,404,585,899.55
  5. Step 5: Solve for x
    x = 396,404,585,899.55/807,326.28
  6. Step 6: Final answer
    x = 491,009.14

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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.