Home / 326,528.52-489,604.20-126,615.36

Finding the Fourth Proportional to 326,528.52, 489,604.20 and 126,615.36

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Solution

The fourth proportional to 326,528.52, 489,604.20 and 126,615.36 is: 189,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,528.52 : 489,604.20 = 126,615.36 : x
  2. Step 2: Convert to fraction form
    326,528.52/489,604.20 = 126,615.36/x
  3. Step 3: Cross multiply
    326,528.52x = 489,604.20 × 126,615.36
  4. Step 4: Simplify right side
    326,528.52x = 61,991,412,040.51
  5. Step 5: Solve for x
    x = 61,991,412,040.51/326,528.52
  6. Step 6: Final answer
    x = 189,849.92

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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.