Home / 1,191,779.11-1,787,778.83-338,868.55

Finding the Fourth Proportional to 1,191,779.11, 1,787,778.83 and 338,868.55

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Solution

The fourth proportional to 1,191,779.11, 1,787,778.83 and 338,868.55 is: 508,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,779.11 : 1,787,778.83 = 338,868.55 : x
  2. Step 2: Convert to fraction form
    1,191,779.11/1,787,778.83 = 338,868.55/x
  3. Step 3: Cross multiply
    1,191,779.11x = 1,787,778.83 × 338,868.55
  4. Step 4: Simplify right side
    1,191,779.11x = 605,822,019,842.80
  5. Step 5: Solve for x
    x = 605,822,019,842.80/1,191,779.11
  6. Step 6: Final answer
    x = 508,334.15

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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.