Home / 431,100.14-645,546.11-359,845.63

Finding the Fourth Proportional to 431,100.14, 645,546.11 and 359,845.63

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Solution

The fourth proportional to 431,100.14, 645,546.11 and 359,845.63 is: 538,846.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,100.14 : 645,546.11 = 359,845.63 : x
  2. Step 2: Convert to fraction form
    431,100.14/645,546.11 = 359,845.63/x
  3. Step 3: Cross multiply
    431,100.14x = 645,546.11 × 359,845.63
  4. Step 4: Simplify right side
    431,100.14x = 232,296,943,233.91
  5. Step 5: Solve for x
    x = 232,296,943,233.91/431,100.14
  6. Step 6: Final answer
    x = 538,846.83

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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.