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Finding the Fourth Proportional to 649,532.75, 967,449.98 and 620,389.60

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Solution

The fourth proportional to 649,532.75, 967,449.98 and 620,389.60 is: 924,042.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,532.75 : 967,449.98 = 620,389.60 : x
  2. Step 2: Convert to fraction form
    649,532.75/967,449.98 = 620,389.60/x
  3. Step 3: Cross multiply
    649,532.75x = 967,449.98 × 620,389.60
  4. Step 4: Simplify right side
    649,532.75x = 600,195,905,244.56
  5. Step 5: Solve for x
    x = 600,195,905,244.56/649,532.75
  6. Step 6: Final answer
    x = 924,042.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.