Home / 409,795.08-613,615.59-329,406.36

Finding the Fourth Proportional to 409,795.08, 613,615.59 and 329,406.36

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Solution

The fourth proportional to 409,795.08, 613,615.59 and 329,406.36 is: 493,243.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,795.08 : 613,615.59 = 329,406.36 : x
  2. Step 2: Convert to fraction form
    409,795.08/613,615.59 = 329,406.36/x
  3. Step 3: Cross multiply
    409,795.08x = 613,615.59 × 329,406.36
  4. Step 4: Simplify right side
    409,795.08x = 202,128,877,941.15
  5. Step 5: Solve for x
    x = 202,128,877,941.15/409,795.08
  6. Step 6: Final answer
    x = 493,243.79

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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.