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Finding the Fourth Proportional to 662,783.40, 994,175.10 and 382,069.80

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Solution

The fourth proportional to 662,783.40, 994,175.10 and 382,069.80 is: 573,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,783.40 : 994,175.10 = 382,069.80 : x
  2. Step 2: Convert to fraction form
    662,783.40/994,175.10 = 382,069.80/x
  3. Step 3: Cross multiply
    662,783.40x = 994,175.10 × 382,069.80
  4. Step 4: Simplify right side
    662,783.40x = 379,844,281,621.98
  5. Step 5: Solve for x
    x = 379,844,281,621.98/662,783.40
  6. Step 6: Final answer
    x = 573,104.70

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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.