Home / 492,861.27-680,293.98-288,956.46

Finding the Fourth Proportional to 492,861.27, 680,293.98 and 288,956.46

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Solution

The fourth proportional to 492,861.27, 680,293.98 and 288,956.46 is: 398,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,861.27 : 680,293.98 = 288,956.46 : x
  2. Step 2: Convert to fraction form
    492,861.27/680,293.98 = 288,956.46/x
  3. Step 3: Cross multiply
    492,861.27x = 680,293.98 × 288,956.46
  4. Step 4: Simplify right side
    492,861.27x = 196,575,340,220.11
  5. Step 5: Solve for x
    x = 196,575,340,220.11/492,861.27
  6. Step 6: Final answer
    x = 398,845.18

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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.