Home / 428,758.92-591,678.27-237,768.21

Finding the Fourth Proportional to 428,758.92, 591,678.27 and 237,768.21

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Solution

The fourth proportional to 428,758.92, 591,678.27 and 237,768.21 is: 328,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,758.92 : 591,678.27 = 237,768.21 : x
  2. Step 2: Convert to fraction form
    428,758.92/591,678.27 = 237,768.21/x
  3. Step 3: Cross multiply
    428,758.92x = 591,678.27 × 237,768.21
  4. Step 4: Simplify right side
    428,758.92x = 140,682,283,153.80
  5. Step 5: Solve for x
    x = 140,682,283,153.80/428,758.92
  6. Step 6: Final answer
    x = 328,115.12

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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.