Home / 1,188,019.35-1,781,939.50-378,371.11

Finding the Fourth Proportional to 1,188,019.35, 1,781,939.50 and 378,371.11

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Solution

The fourth proportional to 1,188,019.35, 1,781,939.50 and 378,371.11 is: 567,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,019.35 : 1,781,939.50 = 378,371.11 : x
  2. Step 2: Convert to fraction form
    1,188,019.35/1,781,939.50 = 378,371.11/x
  3. Step 3: Cross multiply
    1,188,019.35x = 1,781,939.50 × 378,371.11
  4. Step 4: Simplify right side
    1,188,019.35x = 674,234,426,567.85
  5. Step 5: Solve for x
    x = 674,234,426,567.85/1,188,019.35
  6. Step 6: Final answer
    x = 567,528.15

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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.