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Finding the Fourth Proportional to 652,623.96, 978,962.46 and 310,891.68

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Solution

The fourth proportional to 652,623.96, 978,962.46 and 310,891.68 is: 466,350.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,623.96 : 978,962.46 = 310,891.68 : x
  2. Step 2: Convert to fraction form
    652,623.96/978,962.46 = 310,891.68/x
  3. Step 3: Cross multiply
    652,623.96x = 978,962.46 × 310,891.68
  4. Step 4: Simplify right side
    652,623.96x = 304,351,283,846.33
  5. Step 5: Solve for x
    x = 304,351,283,846.33/652,623.96
  6. Step 6: Final answer
    x = 466,350.15

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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.