Home / 759,288.48-1,047,839.97-419,778.60

Finding the Fourth Proportional to 759,288.48, 1,047,839.97 and 419,778.60

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Solution

The fourth proportional to 759,288.48, 1,047,839.97 and 419,778.60 is: 579,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,288.48 : 1,047,839.97 = 419,778.60 : x
  2. Step 2: Convert to fraction form
    759,288.48/1,047,839.97 = 419,778.60/x
  3. Step 3: Cross multiply
    759,288.48x = 1,047,839.97 × 419,778.60
  4. Step 4: Simplify right side
    759,288.48x = 439,860,795,630.64
  5. Step 5: Solve for x
    x = 439,860,795,630.64/759,288.48
  6. Step 6: Final answer
    x = 579,306.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.