Home / 1,121,567.80-1,682,351.70-447,753.10

Finding the Fourth Proportional to 1,121,567.80, 1,682,351.70 and 447,753.10

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Solution

The fourth proportional to 1,121,567.80, 1,682,351.70 and 447,753.10 is: 671,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,567.80 : 1,682,351.70 = 447,753.10 : x
  2. Step 2: Convert to fraction form
    1,121,567.80/1,682,351.70 = 447,753.10/x
  3. Step 3: Cross multiply
    1,121,567.80x = 1,682,351.70 × 447,753.10
  4. Step 4: Simplify right side
    1,121,567.80x = 753,278,188,965.27
  5. Step 5: Solve for x
    x = 753,278,188,965.27/1,121,567.80
  6. Step 6: Final answer
    x = 671,629.65

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Double scale
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Similar ratio
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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.