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Finding the Fourth Proportional to 662,137.40, 995,279.70 and 649,695.80

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Solution

The fourth proportional to 662,137.40, 995,279.70 and 649,695.80 is: 976,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,137.40 : 995,279.70 = 649,695.80 : x
  2. Step 2: Convert to fraction form
    662,137.40/995,279.70 = 649,695.80/x
  3. Step 3: Cross multiply
    662,137.40x = 995,279.70 × 649,695.80
  4. Step 4: Simplify right side
    662,137.40x = 646,629,040,915.26
  5. Step 5: Solve for x
    x = 646,629,040,915.26/662,137.40
  6. Step 6: Final answer
    x = 976,578.34

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1.5x scale

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.