Home / 828,981.30-1,244,128.05-323,784.30

Finding the Fourth Proportional to 828,981.30, 1,244,128.05 and 323,784.30

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Solution

The fourth proportional to 828,981.30, 1,244,128.05 and 323,784.30 is: 485,932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,981.30 : 1,244,128.05 = 323,784.30 : x
  2. Step 2: Convert to fraction form
    828,981.30/1,244,128.05 = 323,784.30/x
  3. Step 3: Cross multiply
    828,981.30x = 1,244,128.05 × 323,784.30
  4. Step 4: Simplify right side
    828,981.30x = 402,829,129,779.62
  5. Step 5: Solve for x
    x = 402,829,129,779.62/828,981.30
  6. Step 6: Final answer
    x = 485,932.71

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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.