Home / 816,643.58-1,224,961.25-209,429.19

Finding the Fourth Proportional to 816,643.58, 1,224,961.25 and 209,429.19

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Solution

The fourth proportional to 816,643.58, 1,224,961.25 and 209,429.19 is: 314,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,643.58 : 1,224,961.25 = 209,429.19 : x
  2. Step 2: Convert to fraction form
    816,643.58/1,224,961.25 = 209,429.19/x
  3. Step 3: Cross multiply
    816,643.58x = 1,224,961.25 × 209,429.19
  4. Step 4: Simplify right side
    816,643.58x = 256,542,641,321.74
  5. Step 5: Solve for x
    x = 256,542,641,321.74/816,643.58
  6. Step 6: Final answer
    x = 314,142.73

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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.