Home / 462,629.76-638,182.80-281,397.12

Finding the Fourth Proportional to 462,629.76, 638,182.80 and 281,397.12

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Solution

The fourth proportional to 462,629.76, 638,182.80 and 281,397.12 is: 388,178.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,629.76 : 638,182.80 = 281,397.12 : x
  2. Step 2: Convert to fraction form
    462,629.76/638,182.80 = 281,397.12/x
  3. Step 3: Cross multiply
    462,629.76x = 638,182.80 × 281,397.12
  4. Step 4: Simplify right side
    462,629.76x = 179,582,801,953.54
  5. Step 5: Solve for x
    x = 179,582,801,953.54/462,629.76
  6. Step 6: Final answer
    x = 388,178.23

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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.