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Finding the Fourth Proportional to 565,414.20, 848,121.30 and 488,431.80

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Solution

The fourth proportional to 565,414.20, 848,121.30 and 488,431.80 is: 732,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,414.20 : 848,121.30 = 488,431.80 : x
  2. Step 2: Convert to fraction form
    565,414.20/848,121.30 = 488,431.80/x
  3. Step 3: Cross multiply
    565,414.20x = 848,121.30 × 488,431.80
  4. Step 4: Simplify right side
    565,414.20x = 414,249,413,177.34
  5. Step 5: Solve for x
    x = 414,249,413,177.34/565,414.20
  6. Step 6: Final answer
    x = 732,647.70

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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.