Home / 426,488.89-639,734.15-110,945.29

Finding the Fourth Proportional to 426,488.89, 639,734.15 and 110,945.29

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Solution

The fourth proportional to 426,488.89, 639,734.15 and 110,945.29 is: 166,418.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,488.89 : 639,734.15 = 110,945.29 : x
  2. Step 2: Convert to fraction form
    426,488.89/639,734.15 = 110,945.29/x
  3. Step 3: Cross multiply
    426,488.89x = 639,734.15 × 110,945.29
  4. Step 4: Simplify right side
    426,488.89x = 70,975,490,794.65
  5. Step 5: Solve for x
    x = 70,975,490,794.65/426,488.89
  6. Step 6: Final answer
    x = 166,418.15

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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.