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Finding the Fourth Proportional to 664,283.40, 996,522.30 and 348,764.10

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Solution

The fourth proportional to 664,283.40, 996,522.30 and 348,764.10 is: 523,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,283.40 : 996,522.30 = 348,764.10 : x
  2. Step 2: Convert to fraction form
    664,283.40/996,522.30 = 348,764.10/x
  3. Step 3: Cross multiply
    664,283.40x = 996,522.30 × 348,764.10
  4. Step 4: Simplify right side
    664,283.40x = 347,551,203,089.43
  5. Step 5: Solve for x
    x = 347,551,203,089.43/664,283.40
  6. Step 6: Final answer
    x = 523,197.18

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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.