Home / 664,485.10-996,825.45-215,056.60

Finding the Fourth Proportional to 664,485.10, 996,825.45 and 215,056.60

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Solution

The fourth proportional to 664,485.10, 996,825.45 and 215,056.60 is: 322,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,485.10 : 996,825.45 = 215,056.60 : x
  2. Step 2: Convert to fraction form
    664,485.10/996,825.45 = 215,056.60/x
  3. Step 3: Cross multiply
    664,485.10x = 996,825.45 × 215,056.60
  4. Step 4: Simplify right side
    664,485.10x = 214,373,892,070.47
  5. Step 5: Solve for x
    x = 214,373,892,070.47/664,485.10
  6. Step 6: Final answer
    x = 322,616.55

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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.