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Finding the Fourth Proportional to 662,015.20, 994,059.60 and 382,079.20

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Solution

The fourth proportional to 662,015.20, 994,059.60 and 382,079.20 is: 573,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,015.20 : 994,059.60 = 382,079.20 : x
  2. Step 2: Convert to fraction form
    662,015.20/994,059.60 = 382,079.20/x
  3. Step 3: Cross multiply
    662,015.20x = 994,059.60 × 382,079.20
  4. Step 4: Simplify right side
    662,015.20x = 379,809,496,720.32
  5. Step 5: Solve for x
    x = 379,809,496,720.32/662,015.20
  6. Step 6: Final answer
    x = 573,717.18

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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.