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Finding the Fourth Proportional to 571,818.65, 789,115.75 and 313,696.12

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Solution

The fourth proportional to 571,818.65, 789,115.75 and 313,696.12 is: 432,903.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,818.65 : 789,115.75 = 313,696.12 : x
  2. Step 2: Convert to fraction form
    571,818.65/789,115.75 = 313,696.12/x
  3. Step 3: Cross multiply
    571,818.65x = 789,115.75 × 313,696.12
  4. Step 4: Simplify right side
    571,818.65x = 247,542,546,248.86
  5. Step 5: Solve for x
    x = 247,542,546,248.86/571,818.65
  6. Step 6: Final answer
    x = 432,903.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.