Home / 1,217,508.80-1,826,512.16-418,686.56

Finding the Fourth Proportional to 1,217,508.80, 1,826,512.16 and 418,686.56

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Solution

The fourth proportional to 1,217,508.80, 1,826,512.16 and 418,686.56 is: 628,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,508.80 : 1,826,512.16 = 418,686.56 : x
  2. Step 2: Convert to fraction form
    1,217,508.80/1,826,512.16 = 418,686.56/x
  3. Step 3: Cross multiply
    1,217,508.80x = 1,826,512.16 × 418,686.56
  4. Step 4: Simplify right side
    1,217,508.80x = 764,736,093,068.57
  5. Step 5: Solve for x
    x = 764,736,093,068.57/1,217,508.80
  6. Step 6: Final answer
    x = 628,115.45

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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.