Home / 691,498.89-1,036,656.71-265,340.54

Finding the Fourth Proportional to 691,498.89, 1,036,656.71 and 265,340.54

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Solution

The fourth proportional to 691,498.89, 1,036,656.71 and 265,340.54 is: 397,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,498.89 : 1,036,656.71 = 265,340.54 : x
  2. Step 2: Convert to fraction form
    691,498.89/1,036,656.71 = 265,340.54/x
  3. Step 3: Cross multiply
    691,498.89x = 1,036,656.71 × 265,340.54
  4. Step 4: Simplify right side
    691,498.89x = 275,067,044,716.04
  5. Step 5: Solve for x
    x = 275,067,044,716.04/691,498.89
  6. Step 6: Final answer
    x = 397,783.78

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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.