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Finding the Fourth Proportional to 662,905.80, 994,488.30 and 263,478.60

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Solution

The fourth proportional to 662,905.80, 994,488.30 and 263,478.60 is: 395,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,905.80 : 994,488.30 = 263,478.60 : x
  2. Step 2: Convert to fraction form
    662,905.80/994,488.30 = 263,478.60/x
  3. Step 3: Cross multiply
    662,905.80x = 994,488.30 × 263,478.60
  4. Step 4: Simplify right side
    662,905.80x = 262,026,385,000.38
  5. Step 5: Solve for x
    x = 262,026,385,000.38/662,905.80
  6. Step 6: Final answer
    x = 395,269.41

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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.