Home / 697,787.20-1,046,680.80-663,380.80

Finding the Fourth Proportional to 697,787.20, 1,046,680.80 and 663,380.80

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Solution

The fourth proportional to 697,787.20, 1,046,680.80 and 663,380.80 is: 995,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,787.20 : 1,046,680.80 = 663,380.80 : x
  2. Step 2: Convert to fraction form
    697,787.20/1,046,680.80 = 663,380.80/x
  3. Step 3: Cross multiply
    697,787.20x = 1,046,680.80 × 663,380.80
  4. Step 4: Simplify right side
    697,787.20x = 694,347,946,448.64
  5. Step 5: Solve for x
    x = 694,347,946,448.64/697,787.20
  6. Step 6: Final answer
    x = 995,071.20

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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.