Home / 827,324.93-1,240,667.54-321,817.64

Finding the Fourth Proportional to 827,324.93, 1,240,667.54 and 321,817.64

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Solution

The fourth proportional to 827,324.93, 1,240,667.54 and 321,817.64 is: 482,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,324.93 : 1,240,667.54 = 321,817.64 : x
  2. Step 2: Convert to fraction form
    827,324.93/1,240,667.54 = 321,817.64/x
  3. Step 3: Cross multiply
    827,324.93x = 1,240,667.54 × 321,817.64
  4. Step 4: Simplify right side
    827,324.93x = 399,268,691,934.98
  5. Step 5: Solve for x
    x = 399,268,691,934.98/827,324.93
  6. Step 6: Final answer
    x = 482,602.03

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1.5x scale

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.