Home / 722,940.30-1,084,410.45-688,725.90

Finding the Fourth Proportional to 722,940.30, 1,084,410.45 and 688,725.90

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Solution

The fourth proportional to 722,940.30, 1,084,410.45 and 688,725.90 is: 1,033,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,940.30 : 1,084,410.45 = 688,725.90 : x
  2. Step 2: Convert to fraction form
    722,940.30/1,084,410.45 = 688,725.90/x
  3. Step 3: Cross multiply
    722,940.30x = 1,084,410.45 × 688,725.90
  4. Step 4: Simplify right side
    722,940.30x = 746,861,563,145.66
  5. Step 5: Solve for x
    x = 746,861,563,145.66/722,940.30
  6. Step 6: Final answer
    x = 1,033,088.85

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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.