Home / 744,203.05-1,116,563.78-323,780.65

Finding the Fourth Proportional to 744,203.05, 1,116,563.78 and 323,780.65

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Solution

The fourth proportional to 744,203.05, 1,116,563.78 and 323,780.65 is: 485,783.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,203.05 : 1,116,563.78 = 323,780.65 : x
  2. Step 2: Convert to fraction form
    744,203.05/1,116,563.78 = 323,780.65/x
  3. Step 3: Cross multiply
    744,203.05x = 1,116,563.78 × 323,780.65
  4. Step 4: Simplify right side
    744,203.05x = 361,521,744,835.95
  5. Step 5: Solve for x
    x = 361,521,744,835.95/744,203.05
  6. Step 6: Final answer
    x = 485,783.75

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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.