Home / 664,373.10-996,705.45-215,114.70

Finding the Fourth Proportional to 664,373.10, 996,705.45 and 215,114.70

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Solution

The fourth proportional to 664,373.10, 996,705.45 and 215,114.70 is: 322,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,373.10 : 996,705.45 = 215,114.70 : x
  2. Step 2: Convert to fraction form
    664,373.10/996,705.45 = 215,114.70/x
  3. Step 3: Cross multiply
    664,373.10x = 996,705.45 × 215,114.70
  4. Step 4: Simplify right side
    664,373.10x = 214,405,993,865.12
  5. Step 5: Solve for x
    x = 214,405,993,865.12/664,373.10
  6. Step 6: Final answer
    x = 322,719.26

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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.