Home / 651,105.78-976,505.55-177,678.60

Finding the Fourth Proportional to 651,105.78, 976,505.55 and 177,678.60

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Solution

The fourth proportional to 651,105.78, 976,505.55 and 177,678.60 is: 266,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,105.78 : 976,505.55 = 177,678.60 : x
  2. Step 2: Convert to fraction form
    651,105.78/976,505.55 = 177,678.60/x
  3. Step 3: Cross multiply
    651,105.78x = 976,505.55 × 177,678.60
  4. Step 4: Simplify right side
    651,105.78x = 173,504,139,016.23
  5. Step 5: Solve for x
    x = 173,504,139,016.23/651,105.78
  6. Step 6: Final answer
    x = 266,476.12

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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.