Home / 1,120,501.80-1,680,496.38-321,777

Finding the Fourth Proportional to 1,120,501.80, 1,680,496.38 and 321,777

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Solution

The fourth proportional to 1,120,501.80, 1,680,496.38 and 321,777 is: 482,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,501.80 : 1,680,496.38 = 321,777 : x
  2. Step 2: Convert to fraction form
    1,120,501.80/1,680,496.38 = 321,777/x
  3. Step 3: Cross multiply
    1,120,501.80x = 1,680,496.38 × 321,777
  4. Step 4: Simplify right side
    1,120,501.80x = 540,745,083,667.26
  5. Step 5: Solve for x
    x = 540,745,083,667.26/1,120,501.80
  6. Step 6: Final answer
    x = 482,591.89

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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.