Home / 753,932.97-1,040,435.73-409,768.74

Finding the Fourth Proportional to 753,932.97, 1,040,435.73 and 409,768.74

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Solution

The fourth proportional to 753,932.97, 1,040,435.73 and 409,768.74 is: 565,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,932.97 : 1,040,435.73 = 409,768.74 : x
  2. Step 2: Convert to fraction form
    753,932.97/1,040,435.73 = 409,768.74/x
  3. Step 3: Cross multiply
    753,932.97x = 1,040,435.73 × 409,768.74
  4. Step 4: Simplify right side
    753,932.97x = 426,338,038,133.08
  5. Step 5: Solve for x
    x = 426,338,038,133.08/753,932.97
  6. Step 6: Final answer
    x = 565,485.34

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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.