Home / 513,697.28-769,501.44-419,264

Finding the Fourth Proportional to 513,697.28, 769,501.44 and 419,264

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Solution

The fourth proportional to 513,697.28, 769,501.44 and 419,264 is: 628,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,697.28 : 769,501.44 = 419,264 : x
  2. Step 2: Convert to fraction form
    513,697.28/769,501.44 = 419,264/x
  3. Step 3: Cross multiply
    513,697.28x = 769,501.44 × 419,264
  4. Step 4: Simplify right side
    513,697.28x = 322,624,251,740.16
  5. Step 5: Solve for x
    x = 322,624,251,740.16/513,697.28
  6. Step 6: Final answer
    x = 628,043.53

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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.