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Finding the Fourth Proportional to 870,600.52, 1,305,638.34 and 309,601

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Solution

The fourth proportional to 870,600.52, 1,305,638.34 and 309,601 is: 464,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,600.52 : 1,305,638.34 = 309,601 : x
  2. Step 2: Convert to fraction form
    870,600.52/1,305,638.34 = 309,601/x
  3. Step 3: Cross multiply
    870,600.52x = 1,305,638.34 × 309,601
  4. Step 4: Simplify right side
    870,600.52x = 404,226,935,702.34
  5. Step 5: Solve for x
    x = 404,226,935,702.34/870,600.52
  6. Step 6: Final answer
    x = 464,308.17

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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.