Home / 664,678.01-996,918.46-215,438.51

Finding the Fourth Proportional to 664,678.01, 996,918.46 and 215,438.51

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Solution

The fourth proportional to 664,678.01, 996,918.46 and 215,438.51 is: 323,125.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,678.01 : 996,918.46 = 215,438.51 : x
  2. Step 2: Convert to fraction form
    664,678.01/996,918.46 = 215,438.51/x
  3. Step 3: Cross multiply
    664,678.01x = 996,918.46 × 215,438.51
  4. Step 4: Simplify right side
    664,678.01x = 214,774,627,613.90
  5. Step 5: Solve for x
    x = 214,774,627,613.90/664,678.01
  6. Step 6: Final answer
    x = 323,125.82

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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.