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Finding the Fourth Proportional to 664,241.90, 996,460.05 and 348,722.60

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Solution

The fourth proportional to 664,241.90, 996,460.05 and 348,722.60 is: 523,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,241.90 : 996,460.05 = 348,722.60 : x
  2. Step 2: Convert to fraction form
    664,241.90/996,460.05 = 348,722.60/x
  3. Step 3: Cross multiply
    664,241.90x = 996,460.05 × 348,722.60
  4. Step 4: Simplify right side
    664,241.90x = 347,488,139,432.13
  5. Step 5: Solve for x
    x = 347,488,139,432.13/664,241.90
  6. Step 6: Final answer
    x = 523,134.93

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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.