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Finding the Fourth Proportional to 662,969.40, 995,231.70 and 658,303.80

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Solution

The fourth proportional to 662,969.40, 995,231.70 and 658,303.80 is: 988,227.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,969.40 : 995,231.70 = 658,303.80 : x
  2. Step 2: Convert to fraction form
    662,969.40/995,231.70 = 658,303.80/x
  3. Step 3: Cross multiply
    662,969.40x = 995,231.70 × 658,303.80
  4. Step 4: Simplify right side
    662,969.40x = 655,164,809,990.46
  5. Step 5: Solve for x
    x = 655,164,809,990.46/662,969.40
  6. Step 6: Final answer
    x = 988,227.83

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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.