Home / 699,463.20-1,048,503.60-278,176.80

Finding the Fourth Proportional to 699,463.20, 1,048,503.60 and 278,176.80

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Solution

The fourth proportional to 699,463.20, 1,048,503.60 and 278,176.80 is: 416,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,463.20 : 1,048,503.60 = 278,176.80 : x
  2. Step 2: Convert to fraction form
    699,463.20/1,048,503.60 = 278,176.80/x
  3. Step 3: Cross multiply
    699,463.20x = 1,048,503.60 × 278,176.80
  4. Step 4: Simplify right side
    699,463.20x = 291,669,376,236.48
  5. Step 5: Solve for x
    x = 291,669,376,236.48/699,463.20
  6. Step 6: Final answer
    x = 416,990.31

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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.