Home / 722,819.20-1,085,265.60-546,563.20

Finding the Fourth Proportional to 722,819.20, 1,085,265.60 and 546,563.20

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Solution

The fourth proportional to 722,819.20, 1,085,265.60 and 546,563.20 is: 820,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,819.20 : 1,085,265.60 = 546,563.20 : x
  2. Step 2: Convert to fraction form
    722,819.20/1,085,265.60 = 546,563.20/x
  3. Step 3: Cross multiply
    722,819.20x = 1,085,265.60 × 546,563.20
  4. Step 4: Simplify right side
    722,819.20x = 593,166,239,185.92
  5. Step 5: Solve for x
    x = 593,166,239,185.92/722,819.20
  6. Step 6: Final answer
    x = 820,628.78

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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.