Home / 480,743.13-663,629.76-299,544.57

Finding the Fourth Proportional to 480,743.13, 663,629.76 and 299,544.57

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Solution

The fourth proportional to 480,743.13, 663,629.76 and 299,544.57 is: 413,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,743.13 : 663,629.76 = 299,544.57 : x
  2. Step 2: Convert to fraction form
    480,743.13/663,629.76 = 299,544.57/x
  3. Step 3: Cross multiply
    480,743.13x = 663,629.76 × 299,544.57
  4. Step 4: Simplify right side
    480,743.13x = 198,786,691,098.40
  5. Step 5: Solve for x
    x = 198,786,691,098.40/480,743.13
  6. Step 6: Final answer
    x = 413,498.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.