Home / 521,551.40-782,831.64-251,868.56

Finding the Fourth Proportional to 521,551.40, 782,831.64 and 251,868.56

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Solution

The fourth proportional to 521,551.40, 782,831.64 and 251,868.56 is: 378,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,551.40 : 782,831.64 = 251,868.56 : x
  2. Step 2: Convert to fraction form
    521,551.40/782,831.64 = 251,868.56/x
  3. Step 3: Cross multiply
    521,551.40x = 782,831.64 × 251,868.56
  4. Step 4: Simplify right side
    521,551.40x = 197,170,677,889.24
  5. Step 5: Solve for x
    x = 197,170,677,889.24/521,551.40
  6. Step 6: Final answer
    x = 378,046.49

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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.