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Finding the Fourth Proportional to 578,806.65, 868,242.78 and 179,504.19

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Solution

The fourth proportional to 578,806.65, 868,242.78 and 179,504.19 is: 269,266.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,806.65 : 868,242.78 = 179,504.19 : x
  2. Step 2: Convert to fraction form
    578,806.65/868,242.78 = 179,504.19/x
  3. Step 3: Cross multiply
    578,806.65x = 868,242.78 × 179,504.19
  4. Step 4: Simplify right side
    578,806.65x = 155,853,216,947.25
  5. Step 5: Solve for x
    x = 155,853,216,947.25/578,806.65
  6. Step 6: Final answer
    x = 269,266.46

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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.