Home / 828,982.30-1,244,129.55-323,785.30

Finding the Fourth Proportional to 828,982.30, 1,244,129.55 and 323,785.30

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Solution

The fourth proportional to 828,982.30, 1,244,129.55 and 323,785.30 is: 485,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,982.30 : 1,244,129.55 = 323,785.30 : x
  2. Step 2: Convert to fraction form
    828,982.30/1,244,129.55 = 323,785.30/x
  3. Step 3: Cross multiply
    828,982.30x = 1,244,129.55 × 323,785.30
  4. Step 4: Simplify right side
    828,982.30x = 402,830,859,585.62
  5. Step 5: Solve for x
    x = 402,830,859,585.62/828,982.30
  6. Step 6: Final answer
    x = 485,934.21

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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.