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Finding the Fourth Proportional to 432,900.30, 649,494.40 and 272,791.22

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Solution

The fourth proportional to 432,900.30, 649,494.40 and 272,791.22 is: 409,277.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,900.30 : 649,494.40 = 272,791.22 : x
  2. Step 2: Convert to fraction form
    432,900.30/649,494.40 = 272,791.22/x
  3. Step 3: Cross multiply
    432,900.30x = 649,494.40 × 272,791.22
  4. Step 4: Simplify right side
    432,900.30x = 177,176,369,759.17
  5. Step 5: Solve for x
    x = 177,176,369,759.17/432,900.30
  6. Step 6: Final answer
    x = 409,277.54

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1.5x scale

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.