Home / 823,448.73-1,234,316.76-318,356.64

Finding the Fourth Proportional to 823,448.73, 1,234,316.76 and 318,356.64

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Solution

The fourth proportional to 823,448.73, 1,234,316.76 and 318,356.64 is: 477,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,448.73 : 1,234,316.76 = 318,356.64 : x
  2. Step 2: Convert to fraction form
    823,448.73/1,234,316.76 = 318,356.64/x
  3. Step 3: Cross multiply
    823,448.73x = 1,234,316.76 × 318,356.64
  4. Step 4: Simplify right side
    823,448.73x = 392,952,936,409.29
  5. Step 5: Solve for x
    x = 392,952,936,409.29/823,448.73
  6. Step 6: Final answer
    x = 477,203.89

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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.