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Finding the Fourth Proportional to 652,699.40, 978,809.89 and 226,125.05

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Solution

The fourth proportional to 652,699.40, 978,809.89 and 226,125.05 is: 339,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,699.40 : 978,809.89 = 226,125.05 : x
  2. Step 2: Convert to fraction form
    652,699.40/978,809.89 = 226,125.05/x
  3. Step 3: Cross multiply
    652,699.40x = 978,809.89 × 226,125.05
  4. Step 4: Simplify right side
    652,699.40x = 221,333,429,857.38
  5. Step 5: Solve for x
    x = 221,333,429,857.38/652,699.40
  6. Step 6: Final answer
    x = 339,104.70

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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.