Home / 513,699.28-769,504.44-419,266

Finding the Fourth Proportional to 513,699.28, 769,504.44 and 419,266

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Solution

The fourth proportional to 513,699.28, 769,504.44 and 419,266 is: 628,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,699.28 : 769,504.44 = 419,266 : x
  2. Step 2: Convert to fraction form
    513,699.28/769,504.44 = 419,266/x
  3. Step 3: Cross multiply
    513,699.28x = 769,504.44 × 419,266
  4. Step 4: Simplify right side
    513,699.28x = 322,627,048,541.04
  5. Step 5: Solve for x
    x = 322,627,048,541.04/513,699.28
  6. Step 6: Final answer
    x = 628,046.53

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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.