Home / 664,300.14-996,608.40-215,021.10

Finding the Fourth Proportional to 664,300.14, 996,608.40 and 215,021.10

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Solution

The fourth proportional to 664,300.14, 996,608.40 and 215,021.10 is: 322,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,300.14 : 996,608.40 = 215,021.10 : x
  2. Step 2: Convert to fraction form
    664,300.14/996,608.40 = 215,021.10/x
  3. Step 3: Cross multiply
    664,300.14x = 996,608.40 × 215,021.10
  4. Step 4: Simplify right side
    664,300.14x = 214,291,834,437.24
  5. Step 5: Solve for x
    x = 214,291,834,437.24/664,300.14
  6. Step 6: Final answer
    x = 322,582.85

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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.