Home / 1,188,018.35-1,781,938-378,370.11

Finding the Fourth Proportional to 1,188,018.35, 1,781,938 and 378,370.11

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Solution

The fourth proportional to 1,188,018.35, 1,781,938 and 378,370.11 is: 567,526.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,018.35 : 1,781,938 = 378,370.11 : x
  2. Step 2: Convert to fraction form
    1,188,018.35/1,781,938 = 378,370.11/x
  3. Step 3: Cross multiply
    1,188,018.35x = 1,781,938 × 378,370.11
  4. Step 4: Simplify right side
    1,188,018.35x = 674,232,077,073.18
  5. Step 5: Solve for x
    x = 674,232,077,073.18/1,188,018.35
  6. Step 6: Final answer
    x = 567,526.65

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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.