Home / 821,076.75-1,133,063.91-458,490.51

Finding the Fourth Proportional to 821,076.75, 1,133,063.91 and 458,490.51

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Solution

The fourth proportional to 821,076.75, 1,133,063.91 and 458,490.51 is: 632,704.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,076.75 : 1,133,063.91 = 458,490.51 : x
  2. Step 2: Convert to fraction form
    821,076.75/1,133,063.91 = 458,490.51/x
  3. Step 3: Cross multiply
    821,076.75x = 1,133,063.91 × 458,490.51
  4. Step 4: Simplify right side
    821,076.75x = 519,499,049,958.49
  5. Step 5: Solve for x
    x = 519,499,049,958.49/821,076.75
  6. Step 6: Final answer
    x = 632,704.62

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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.