Home / 547,278.90-821,004.75-231,737.78

Finding the Fourth Proportional to 547,278.90, 821,004.75 and 231,737.78

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Solution

The fourth proportional to 547,278.90, 821,004.75 and 231,737.78 is: 347,643.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,278.90 : 821,004.75 = 231,737.78 : x
  2. Step 2: Convert to fraction form
    547,278.90/821,004.75 = 231,737.78/x
  3. Step 3: Cross multiply
    547,278.90x = 821,004.75 × 231,737.78
  4. Step 4: Simplify right side
    547,278.90x = 190,257,818,134.46
  5. Step 5: Solve for x
    x = 190,257,818,134.46/547,278.90
  6. Step 6: Final answer
    x = 347,643.25

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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.