Home / 744,140.05-1,116,469.28-323,717.65

Finding the Fourth Proportional to 744,140.05, 1,116,469.28 and 323,717.65

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Solution

The fourth proportional to 744,140.05, 1,116,469.28 and 323,717.65 is: 485,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,140.05 : 1,116,469.28 = 323,717.65 : x
  2. Step 2: Convert to fraction form
    744,140.05/1,116,469.28 = 323,717.65/x
  3. Step 3: Cross multiply
    744,140.05x = 1,116,469.28 × 323,717.65
  4. Step 4: Simplify right side
    744,140.05x = 361,420,810,000.20
  5. Step 5: Solve for x
    x = 361,420,810,000.20/744,140.05
  6. Step 6: Final answer
    x = 485,689.23

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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.