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Finding the Fourth Proportional to 664,060.80, 996,220.80 and 284,980.80

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Solution

The fourth proportional to 664,060.80, 996,220.80 and 284,980.80 is: 427,526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,060.80 : 996,220.80 = 284,980.80 : x
  2. Step 2: Convert to fraction form
    664,060.80/996,220.80 = 284,980.80/x
  3. Step 3: Cross multiply
    664,060.80x = 996,220.80 × 284,980.80
  4. Step 4: Simplify right side
    664,060.80x = 283,903,800,560.64
  5. Step 5: Solve for x
    x = 283,903,800,560.64/664,060.80
  6. Step 6: Final answer
    x = 427,526.82

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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.