Home / 1,217,958.72-1,826,806.84-319,490.52

Finding the Fourth Proportional to 1,217,958.72, 1,826,806.84 and 319,490.52

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Solution

The fourth proportional to 1,217,958.72, 1,826,806.84 and 319,490.52 is: 479,201.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,958.72 : 1,826,806.84 = 319,490.52 : x
  2. Step 2: Convert to fraction form
    1,217,958.72/1,826,806.84 = 319,490.52/x
  3. Step 3: Cross multiply
    1,217,958.72x = 1,826,806.84 × 319,490.52
  4. Step 4: Simplify right side
    1,217,958.72x = 583,647,467,251.16
  5. Step 5: Solve for x
    x = 583,647,467,251.16/1,217,958.72
  6. Step 6: Final answer
    x = 479,201.35

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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.