Home / 428,871.17-591,837.91-237,879.65

Finding the Fourth Proportional to 428,871.17, 591,837.91 and 237,879.65

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Solution

The fourth proportional to 428,871.17, 591,837.91 and 237,879.65 is: 328,271.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,871.17 : 591,837.91 = 237,879.65 : x
  2. Step 2: Convert to fraction form
    428,871.17/591,837.91 = 237,879.65/x
  3. Step 3: Cross multiply
    428,871.17x = 591,837.91 × 237,879.65
  4. Step 4: Simplify right side
    428,871.17x = 140,786,195,772.43
  5. Step 5: Solve for x
    x = 140,786,195,772.43/428,871.17
  6. Step 6: Final answer
    x = 328,271.53

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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.