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Finding the Fourth Proportional to 662,114.40, 995,245.20 and 649,672.80

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Solution

The fourth proportional to 662,114.40, 995,245.20 and 649,672.80 is: 976,543.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,114.40 : 995,245.20 = 649,672.80 : x
  2. Step 2: Convert to fraction form
    662,114.40/995,245.20 = 649,672.80/x
  3. Step 3: Cross multiply
    662,114.40x = 995,245.20 × 649,672.80
  4. Step 4: Simplify right side
    662,114.40x = 646,583,735,770.56
  5. Step 5: Solve for x
    x = 646,583,735,770.56/662,114.40
  6. Step 6: Final answer
    x = 976,543.84

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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.