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Finding the Fourth Proportional to 652,561.72, 978,840.69 and 179,247.55

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Solution

The fourth proportional to 652,561.72, 978,840.69 and 179,247.55 is: 268,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,561.72 : 978,840.69 = 179,247.55 : x
  2. Step 2: Convert to fraction form
    652,561.72/978,840.69 = 179,247.55/x
  3. Step 3: Cross multiply
    652,561.72x = 978,840.69 × 179,247.55
  4. Step 4: Simplify right side
    652,561.72x = 175,454,795,522.81
  5. Step 5: Solve for x
    x = 175,454,795,522.81/652,561.72
  6. Step 6: Final answer
    x = 268,870.81

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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.