Home / 1,188,222.40-1,782,610.08-389,454.40

Finding the Fourth Proportional to 1,188,222.40, 1,782,610.08 and 389,454.40

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Solution

The fourth proportional to 1,188,222.40, 1,782,610.08 and 389,454.40 is: 584,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,222.40 : 1,782,610.08 = 389,454.40 : x
  2. Step 2: Convert to fraction form
    1,188,222.40/1,782,610.08 = 389,454.40/x
  3. Step 3: Cross multiply
    1,188,222.40x = 1,782,610.08 × 389,454.40
  4. Step 4: Simplify right side
    1,188,222.40x = 694,245,339,140.35
  5. Step 5: Solve for x
    x = 694,245,339,140.35/1,188,222.40
  6. Step 6: Final answer
    x = 584,272.22

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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.