Home / 2,189,453.70-3,021,385.51-1,209,375.17

Finding the Fourth Proportional to 2,189,453.70, 3,021,385.51 and 1,209,375.17

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Solution

The fourth proportional to 2,189,453.70, 3,021,385.51 and 1,209,375.17 is: 1,668,904.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,453.70 : 3,021,385.51 = 1,209,375.17 : x
  2. Step 2: Convert to fraction form
    2,189,453.70/3,021,385.51 = 1,209,375.17/x
  3. Step 3: Cross multiply
    2,189,453.70x = 3,021,385.51 × 1,209,375.17
  4. Step 4: Simplify right side
    2,189,453.70x = 3,653,988,612,526.77
  5. Step 5: Solve for x
    x = 3,653,988,612,526.77/2,189,453.70
  6. Step 6: Final answer
    x = 1,668,904.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.