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Finding the Fourth Proportional to 662,708.80, 994,063.20 and 307,604.80

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Solution

The fourth proportional to 662,708.80, 994,063.20 and 307,604.80 is: 461,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,708.80 : 994,063.20 = 307,604.80 : x
  2. Step 2: Convert to fraction form
    662,708.80/994,063.20 = 307,604.80/x
  3. Step 3: Cross multiply
    662,708.80x = 994,063.20 × 307,604.80
  4. Step 4: Simplify right side
    662,708.80x = 305,778,611,823.36
  5. Step 5: Solve for x
    x = 305,778,611,823.36/662,708.80
  6. Step 6: Final answer
    x = 461,407.20

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Similar ratio
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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.