Home / 1,330,622.78-1,995,933.96-319,744.73

Finding the Fourth Proportional to 1,330,622.78, 1,995,933.96 and 319,744.73

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Solution

The fourth proportional to 1,330,622.78, 1,995,933.96 and 319,744.73 is: 479,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,622.78 : 1,995,933.96 = 319,744.73 : x
  2. Step 2: Convert to fraction form
    1,330,622.78/1,995,933.96 = 319,744.73/x
  3. Step 3: Cross multiply
    1,330,622.78x = 1,995,933.96 × 319,744.73
  4. Step 4: Simplify right side
    1,330,622.78x = 638,189,369,601.60
  5. Step 5: Solve for x
    x = 638,189,369,601.60/1,330,622.78
  6. Step 6: Final answer
    x = 479,617.05

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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.