Home / 379,633.50-523,848.75-209,844.54

Finding the Fourth Proportional to 379,633.50, 523,848.75 and 209,844.54

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Solution

The fourth proportional to 379,633.50, 523,848.75 and 209,844.54 is: 289,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,633.50 : 523,848.75 = 209,844.54 : x
  2. Step 2: Convert to fraction form
    379,633.50/523,848.75 = 209,844.54/x
  3. Step 3: Cross multiply
    379,633.50x = 523,848.75 × 209,844.54
  4. Step 4: Simplify right side
    379,633.50x = 109,926,799,973.33
  5. Step 5: Solve for x
    x = 109,926,799,973.33/379,633.50
  6. Step 6: Final answer
    x = 289,560.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.