Home / 326,348.37-489,880.55-259,311.35

Finding the Fourth Proportional to 326,348.37, 489,880.55 and 259,311.35

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Solution

The fourth proportional to 326,348.37, 489,880.55 and 259,311.35 is: 389,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,348.37 : 489,880.55 = 259,311.35 : x
  2. Step 2: Convert to fraction form
    326,348.37/489,880.55 = 259,311.35/x
  3. Step 3: Cross multiply
    326,348.37x = 489,880.55 × 259,311.35
  4. Step 4: Simplify right side
    326,348.37x = 127,031,583,013.28
  5. Step 5: Solve for x
    x = 127,031,583,013.28/326,348.37
  6. Step 6: Final answer
    x = 389,251.47

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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.