Home / 1,225,744.43-1,691,581.95-1,021,453.38

Finding the Fourth Proportional to 1,225,744.43, 1,691,581.95 and 1,021,453.38

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Solution

The fourth proportional to 1,225,744.43, 1,691,581.95 and 1,021,453.38 is: 1,409,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,744.43 : 1,691,581.95 = 1,021,453.38 : x
  2. Step 2: Convert to fraction form
    1,225,744.43/1,691,581.95 = 1,021,453.38/x
  3. Step 3: Cross multiply
    1,225,744.43x = 1,691,581.95 × 1,021,453.38
  4. Step 4: Simplify right side
    1,225,744.43x = 1,727,872,100,374.49
  5. Step 5: Solve for x
    x = 1,727,872,100,374.49/1,225,744.43
  6. Step 6: Final answer
    x = 1,409,651.20

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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.