Home / 428,721.18-591,633.09-237,766.92

Finding the Fourth Proportional to 428,721.18, 591,633.09 and 237,766.92

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Solution

The fourth proportional to 428,721.18, 591,633.09 and 237,766.92 is: 328,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,721.18 : 591,633.09 = 237,766.92 : x
  2. Step 2: Convert to fraction form
    428,721.18/591,633.09 = 237,766.92/x
  3. Step 3: Cross multiply
    428,721.18x = 591,633.09 × 237,766.92
  4. Step 4: Simplify right side
    428,721.18x = 140,670,777,579.38
  5. Step 5: Solve for x
    x = 140,670,777,579.38/428,721.18
  6. Step 6: Final answer
    x = 328,117.16

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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.