Home / 925,403.74-1,277,033.11-511,955.78

Finding the Fourth Proportional to 925,403.74, 1,277,033.11 and 511,955.78

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Solution

The fourth proportional to 925,403.74, 1,277,033.11 and 511,955.78 is: 706,485.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,403.74 : 1,277,033.11 = 511,955.78 : x
  2. Step 2: Convert to fraction form
    925,403.74/1,277,033.11 = 511,955.78/x
  3. Step 3: Cross multiply
    925,403.74x = 1,277,033.11 × 511,955.78
  4. Step 4: Simplify right side
    925,403.74x = 653,784,474,250.82
  5. Step 5: Solve for x
    x = 653,784,474,250.82/925,403.74
  6. Step 6: Final answer
    x = 706,485.66

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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.