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Finding the Fourth Proportional to 638,446.80, 957,232.80 and 301,648.80

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Solution

The fourth proportional to 638,446.80, 957,232.80 and 301,648.80 is: 452,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,446.80 : 957,232.80 = 301,648.80 : x
  2. Step 2: Convert to fraction form
    638,446.80/957,232.80 = 301,648.80/x
  3. Step 3: Cross multiply
    638,446.80x = 957,232.80 × 301,648.80
  4. Step 4: Simplify right side
    638,446.80x = 288,748,125,440.64
  5. Step 5: Solve for x
    x = 288,748,125,440.64/638,446.80
  6. Step 6: Final answer
    x = 452,266.54

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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.