Home / 1,332,335.10-1,998,216.30-421,589.72

Finding the Fourth Proportional to 1,332,335.10, 1,998,216.30 and 421,589.72

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Solution

The fourth proportional to 1,332,335.10, 1,998,216.30 and 421,589.72 is: 632,293.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,335.10 : 1,998,216.30 = 421,589.72 : x
  2. Step 2: Convert to fraction form
    1,332,335.10/1,998,216.30 = 421,589.72/x
  3. Step 3: Cross multiply
    1,332,335.10x = 1,998,216.30 × 421,589.72
  4. Step 4: Simplify right side
    1,332,335.10x = 842,427,450,416.44
  5. Step 5: Solve for x
    x = 842,427,450,416.44/1,332,335.10
  6. Step 6: Final answer
    x = 632,293.97

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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.