Home / 489,471.04-675,471.90-285,662.74

Finding the Fourth Proportional to 489,471.04, 675,471.90 and 285,662.74

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Solution

The fourth proportional to 489,471.04, 675,471.90 and 285,662.74 is: 394,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,471.04 : 675,471.90 = 285,662.74 : x
  2. Step 2: Convert to fraction form
    489,471.04/675,471.90 = 285,662.74/x
  3. Step 3: Cross multiply
    489,471.04x = 675,471.90 × 285,662.74
  4. Step 4: Simplify right side
    489,471.04x = 192,957,153,747.01
  5. Step 5: Solve for x
    x = 192,957,153,747.01/489,471.04
  6. Step 6: Final answer
    x = 394,215.67

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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.