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Finding the Fourth Proportional to 652,568.38, 978,739.70 and 172,803.08

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Solution

The fourth proportional to 652,568.38, 978,739.70 and 172,803.08 is: 259,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,568.38 : 978,739.70 = 172,803.08 : x
  2. Step 2: Convert to fraction form
    652,568.38/978,739.70 = 172,803.08/x
  3. Step 3: Cross multiply
    652,568.38x = 978,739.70 × 172,803.08
  4. Step 4: Simplify right side
    652,568.38x = 169,129,234,678.28
  5. Step 5: Solve for x
    x = 169,129,234,678.28/652,568.38
  6. Step 6: Final answer
    x = 259,174.73

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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.