Home / 428,037.68-642,105.76-250,546.26

Finding the Fourth Proportional to 428,037.68, 642,105.76 and 250,546.26

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Solution

The fourth proportional to 428,037.68, 642,105.76 and 250,546.26 is: 375,848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,037.68 : 642,105.76 = 250,546.26 : x
  2. Step 2: Convert to fraction form
    428,037.68/642,105.76 = 250,546.26/x
  3. Step 3: Cross multiply
    428,037.68x = 642,105.76 × 250,546.26
  4. Step 4: Simplify right side
    428,037.68x = 160,877,196,692.46
  5. Step 5: Solve for x
    x = 160,877,196,692.46/428,037.68
  6. Step 6: Final answer
    x = 375,848.21

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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.