Home / 664,455.20-996,239.93-322,807.53

Finding the Fourth Proportional to 664,455.20, 996,239.93 and 322,807.53

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Solution

The fourth proportional to 664,455.20, 996,239.93 and 322,807.53 is: 483,996.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,455.20 : 996,239.93 = 322,807.53 : x
  2. Step 2: Convert to fraction form
    664,455.20/996,239.93 = 322,807.53/x
  3. Step 3: Cross multiply
    664,455.20x = 996,239.93 × 322,807.53
  4. Step 4: Simplify right side
    664,455.20x = 321,593,747,608.69
  5. Step 5: Solve for x
    x = 321,593,747,608.69/664,455.20
  6. Step 6: Final answer
    x = 483,996.13

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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.