Home / 645,245.10-967,996.85-361,339.39

Finding the Fourth Proportional to 645,245.10, 967,996.85 and 361,339.39

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Solution

The fourth proportional to 645,245.10, 967,996.85 and 361,339.39 is: 542,081.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,245.10 : 967,996.85 = 361,339.39 : x
  2. Step 2: Convert to fraction form
    645,245.10/967,996.85 = 361,339.39/x
  3. Step 3: Cross multiply
    645,245.10x = 967,996.85 × 361,339.39
  4. Step 4: Simplify right side
    645,245.10x = 349,775,390,704.22
  5. Step 5: Solve for x
    x = 349,775,390,704.22/645,245.10
  6. Step 6: Final answer
    x = 542,081.44

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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.