Home / 428,723.01-591,661.38-237,732.30

Finding the Fourth Proportional to 428,723.01, 591,661.38 and 237,732.30

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Solution

The fourth proportional to 428,723.01, 591,661.38 and 237,732.30 is: 328,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,723.01 : 591,661.38 = 237,732.30 : x
  2. Step 2: Convert to fraction form
    428,723.01/591,661.38 = 237,732.30/x
  3. Step 3: Cross multiply
    428,723.01x = 591,661.38 × 237,732.30
  4. Step 4: Simplify right side
    428,723.01x = 140,657,020,688.57
  5. Step 5: Solve for x
    x = 140,657,020,688.57/428,723.01
  6. Step 6: Final answer
    x = 328,083.68

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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.