Home / 1,040,888.12-1,561,337.04-321,220.94

Finding the Fourth Proportional to 1,040,888.12, 1,561,337.04 and 321,220.94

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Solution

The fourth proportional to 1,040,888.12, 1,561,337.04 and 321,220.94 is: 481,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,888.12 : 1,561,337.04 = 321,220.94 : x
  2. Step 2: Convert to fraction form
    1,040,888.12/1,561,337.04 = 321,220.94/x
  3. Step 3: Cross multiply
    1,040,888.12x = 1,561,337.04 × 321,220.94
  4. Step 4: Simplify right side
    1,040,888.12x = 501,534,151,645.62
  5. Step 5: Solve for x
    x = 501,534,151,645.62/1,040,888.12
  6. Step 6: Final answer
    x = 481,832.91

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Double scale
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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.