Home / 691,499.14-1,036,657.09-265,340.79

Finding the Fourth Proportional to 691,499.14, 1,036,657.09 and 265,340.79

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Solution

The fourth proportional to 691,499.14, 1,036,657.09 and 265,340.79 is: 397,784.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,499.14 : 1,036,657.09 = 265,340.79 : x
  2. Step 2: Convert to fraction form
    691,499.14/1,036,657.09 = 265,340.79/x
  3. Step 3: Cross multiply
    691,499.14x = 1,036,657.09 × 265,340.79
  4. Step 4: Simplify right side
    691,499.14x = 275,067,404,709.71
  5. Step 5: Solve for x
    x = 275,067,404,709.71/691,499.14
  6. Step 6: Final answer
    x = 397,784.16

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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.