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Finding the Fourth Proportional to 616,400.90, 923,046.15 and 404,893.70

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Solution

The fourth proportional to 616,400.90, 923,046.15 and 404,893.70 is: 606,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,400.90 : 923,046.15 = 404,893.70 : x
  2. Step 2: Convert to fraction form
    616,400.90/923,046.15 = 404,893.70/x
  3. Step 3: Cross multiply
    616,400.90x = 923,046.15 × 404,893.70
  4. Step 4: Simplify right side
    616,400.90x = 373,735,570,944.26
  5. Step 5: Solve for x
    x = 373,735,570,944.26/616,400.90
  6. Step 6: Final answer
    x = 606,318.99

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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.