Home / 645,610.44-969,022.39-338,083.15

Finding the Fourth Proportional to 645,610.44, 969,022.39 and 338,083.15

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Solution

The fourth proportional to 645,610.44, 969,022.39 and 338,083.15 is: 507,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,610.44 : 969,022.39 = 338,083.15 : x
  2. Step 2: Convert to fraction form
    645,610.44/969,022.39 = 338,083.15/x
  3. Step 3: Cross multiply
    645,610.44x = 969,022.39 × 338,083.15
  4. Step 4: Simplify right side
    645,610.44x = 327,610,142,031.73
  5. Step 5: Solve for x
    x = 327,610,142,031.73/645,610.44
  6. Step 6: Final answer
    x = 507,442.45

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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.