Home / 825,928.21-1,238,629.87-561,388.69

Finding the Fourth Proportional to 825,928.21, 1,238,629.87 and 561,388.69

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Solution

The fourth proportional to 825,928.21, 1,238,629.87 and 561,388.69 is: 841,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,928.21 : 1,238,629.87 = 561,388.69 : x
  2. Step 2: Convert to fraction form
    825,928.21/1,238,629.87 = 561,388.69/x
  3. Step 3: Cross multiply
    825,928.21x = 1,238,629.87 × 561,388.69
  4. Step 4: Simplify right side
    825,928.21x = 695,352,802,364.19
  5. Step 5: Solve for x
    x = 695,352,802,364.19/825,928.21
  6. Step 6: Final answer
    x = 841,904.65

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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.