Home / 990,638.78-1,367,082.33-560,919.59

Finding the Fourth Proportional to 990,638.78, 1,367,082.33 and 560,919.59

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Solution

The fourth proportional to 990,638.78, 1,367,082.33 and 560,919.59 is: 774,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,638.78 : 1,367,082.33 = 560,919.59 : x
  2. Step 2: Convert to fraction form
    990,638.78/1,367,082.33 = 560,919.59/x
  3. Step 3: Cross multiply
    990,638.78x = 1,367,082.33 × 560,919.59
  4. Step 4: Simplify right side
    990,638.78x = 766,823,260,039.85
  5. Step 5: Solve for x
    x = 766,823,260,039.85/990,638.78
  6. Step 6: Final answer
    x = 774,069.49

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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.