Home / 1,040,219.55-1,560,500.10-320,561.38

Finding the Fourth Proportional to 1,040,219.55, 1,560,500.10 and 320,561.38

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Solution

The fourth proportional to 1,040,219.55, 1,560,500.10 and 320,561.38 is: 480,894.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,219.55 : 1,560,500.10 = 320,561.38 : x
  2. Step 2: Convert to fraction form
    1,040,219.55/1,560,500.10 = 320,561.38/x
  3. Step 3: Cross multiply
    1,040,219.55x = 1,560,500.10 × 320,561.38
  4. Step 4: Simplify right side
    1,040,219.55x = 500,236,058,718.95
  5. Step 5: Solve for x
    x = 500,236,058,718.95/1,040,219.55
  6. Step 6: Final answer
    x = 480,894.69

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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.