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Finding the Fourth Proportional to 801,424, 1,105,965.12 and 443,751.04

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Solution

The fourth proportional to 801,424, 1,105,965.12 and 443,751.04 is: 612,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,424 : 1,105,965.12 = 443,751.04 : x
  2. Step 2: Convert to fraction form
    801,424/1,105,965.12 = 443,751.04/x
  3. Step 3: Cross multiply
    801,424x = 1,105,965.12 × 443,751.04
  4. Step 4: Simplify right side
    801,424x = 490,773,172,203.73
  5. Step 5: Solve for x
    x = 490,773,172,203.73/801,424
  6. Step 6: Final answer
    x = 612,376.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.