Home / 828,008.30-1,240,481.55-471,964.70

Finding the Fourth Proportional to 828,008.30, 1,240,481.55 and 471,964.70

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Solution

The fourth proportional to 828,008.30, 1,240,481.55 and 471,964.70 is: 707,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,008.30 : 1,240,481.55 = 471,964.70 : x
  2. Step 2: Convert to fraction form
    828,008.30/1,240,481.55 = 471,964.70/x
  3. Step 3: Cross multiply
    828,008.30x = 1,240,481.55 × 471,964.70
  4. Step 4: Simplify right side
    828,008.30x = 585,463,502,601.29
  5. Step 5: Solve for x
    x = 585,463,502,601.29/828,008.30
  6. Step 6: Final answer
    x = 707,074.44

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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.