Home / 387,062.37-580,298.07-218,772.72

Finding the Fourth Proportional to 387,062.37, 580,298.07 and 218,772.72

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Solution

The fourth proportional to 387,062.37, 580,298.07 and 218,772.72 is: 327,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,062.37 : 580,298.07 = 218,772.72 : x
  2. Step 2: Convert to fraction form
    387,062.37/580,298.07 = 218,772.72/x
  3. Step 3: Cross multiply
    387,062.37x = 580,298.07 × 218,772.72
  4. Step 4: Simplify right side
    387,062.37x = 126,953,387,184.65
  5. Step 5: Solve for x
    x = 126,953,387,184.65/387,062.37
  6. Step 6: Final answer
    x = 327,992.07

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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.