Home / 1,217,433.34-1,826,131.48-418,721.81

Finding the Fourth Proportional to 1,217,433.34, 1,826,131.48 and 418,721.81

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Solution

The fourth proportional to 1,217,433.34, 1,826,131.48 and 418,721.81 is: 628,076.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,433.34 : 1,826,131.48 = 418,721.81 : x
  2. Step 2: Convert to fraction form
    1,217,433.34/1,826,131.48 = 418,721.81/x
  3. Step 3: Cross multiply
    1,217,433.34x = 1,826,131.48 × 418,721.81
  4. Step 4: Simplify right side
    1,217,433.34x = 764,641,070,781.43
  5. Step 5: Solve for x
    x = 764,641,070,781.43/1,217,433.34
  6. Step 6: Final answer
    x = 628,076.33

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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.