Home / 481,007.47-663,684.97-287,386.13

Finding the Fourth Proportional to 481,007.47, 663,684.97 and 287,386.13

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Solution

The fourth proportional to 481,007.47, 663,684.97 and 287,386.13 is: 396,529.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,007.47 : 663,684.97 = 287,386.13 : x
  2. Step 2: Convert to fraction form
    481,007.47/663,684.97 = 287,386.13/x
  3. Step 3: Cross multiply
    481,007.47x = 663,684.97 × 287,386.13
  4. Step 4: Simplify right side
    481,007.47x = 190,733,855,067.47
  5. Step 5: Solve for x
    x = 190,733,855,067.47/481,007.47
  6. Step 6: Final answer
    x = 396,529.92

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1.5x scale

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.