Home / 498,238.68-687,389.70-383,552.44

Finding the Fourth Proportional to 498,238.68, 687,389.70 and 383,552.44

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Solution

The fourth proportional to 498,238.68, 687,389.70 and 383,552.44 is: 529,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,238.68 : 687,389.70 = 383,552.44 : x
  2. Step 2: Convert to fraction form
    498,238.68/687,389.70 = 383,552.44/x
  3. Step 3: Cross multiply
    498,238.68x = 687,389.70 × 383,552.44
  4. Step 4: Simplify right side
    498,238.68x = 263,649,996,665.87
  5. Step 5: Solve for x
    x = 263,649,996,665.87/498,238.68
  6. Step 6: Final answer
    x = 529,164.05

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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.