Home / 631,478.12-947,280.96-204,996.11

Finding the Fourth Proportional to 631,478.12, 947,280.96 and 204,996.11

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Solution

The fourth proportional to 631,478.12, 947,280.96 and 204,996.11 is: 307,514.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,478.12 : 947,280.96 = 204,996.11 : x
  2. Step 2: Convert to fraction form
    631,478.12/947,280.96 = 204,996.11/x
  3. Step 3: Cross multiply
    631,478.12x = 947,280.96 × 204,996.11
  4. Step 4: Simplify right side
    631,478.12x = 194,188,907,140.66
  5. Step 5: Solve for x
    x = 194,188,907,140.66/631,478.12
  6. Step 6: Final answer
    x = 307,514.86

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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.