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Finding the Fourth Proportional to 664,817.60, 996,934.80 and 265,325.60

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Solution

The fourth proportional to 664,817.60, 996,934.80 and 265,325.60 is: 397,872.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,817.60 : 996,934.80 = 265,325.60 : x
  2. Step 2: Convert to fraction form
    664,817.60/996,934.80 = 265,325.60/x
  3. Step 3: Cross multiply
    664,817.60x = 996,934.80 × 265,325.60
  4. Step 4: Simplify right side
    664,817.60x = 264,512,323,970.88
  5. Step 5: Solve for x
    x = 264,512,323,970.88/664,817.60
  6. Step 6: Final answer
    x = 397,872.02

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1.5x scale

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.