Home / 664,330.20-996,641.10-214,974.60

Finding the Fourth Proportional to 664,330.20, 996,641.10 and 214,974.60

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Solution

The fourth proportional to 664,330.20, 996,641.10 and 214,974.60 is: 322,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,330.20 : 996,641.10 = 214,974.60 : x
  2. Step 2: Convert to fraction form
    664,330.20/996,641.10 = 214,974.60/x
  3. Step 3: Cross multiply
    664,330.20x = 996,641.10 × 214,974.60
  4. Step 4: Simplify right side
    664,330.20x = 214,252,521,816.06
  5. Step 5: Solve for x
    x = 214,252,521,816.06/664,330.20
  6. Step 6: Final answer
    x = 322,509.08

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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.