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Finding the Fourth Proportional to 652,702.62, 978,814.72 and 226,128.28

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Solution

The fourth proportional to 652,702.62, 978,814.72 and 226,128.28 is: 339,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,702.62 : 978,814.72 = 226,128.28 : x
  2. Step 2: Convert to fraction form
    652,702.62/978,814.72 = 226,128.28/x
  3. Step 3: Cross multiply
    652,702.62x = 978,814.72 × 226,128.28
  4. Step 4: Simplify right side
    652,702.62x = 221,337,689,072.28
  5. Step 5: Solve for x
    x = 221,337,689,072.28/652,702.62
  6. Step 6: Final answer
    x = 339,109.55

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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.