Home / 2,519,486.72-3,778,454.90-721,888.55

Finding the Fourth Proportional to 2,519,486.72, 3,778,454.90 and 721,888.55

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Solution

The fourth proportional to 2,519,486.72, 3,778,454.90 and 721,888.55 is: 1,082,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519,486.72 : 3,778,454.90 = 721,888.55 : x
  2. Step 2: Convert to fraction form
    2,519,486.72/3,778,454.90 = 721,888.55/x
  3. Step 3: Cross multiply
    2,519,486.72x = 3,778,454.90 × 721,888.55
  4. Step 4: Simplify right side
    2,519,486.72x = 2,727,623,311,913.84
  5. Step 5: Solve for x
    x = 2,727,623,311,913.84/2,519,486.72
  6. Step 6: Final answer
    x = 1,082,610.71

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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.