Home / 1,120,460.56-1,680,434.88-321,735.76

Finding the Fourth Proportional to 1,120,460.56, 1,680,434.88 and 321,735.76

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Solution

The fourth proportional to 1,120,460.56, 1,680,434.88 and 321,735.76 is: 482,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,460.56 : 1,680,434.88 = 321,735.76 : x
  2. Step 2: Convert to fraction form
    1,120,460.56/1,680,434.88 = 321,735.76/x
  3. Step 3: Cross multiply
    1,120,460.56x = 1,680,434.88 × 321,735.76
  4. Step 4: Simplify right side
    1,120,460.56x = 540,655,993,247.31
  5. Step 5: Solve for x
    x = 540,655,993,247.31/1,120,460.56
  6. Step 6: Final answer
    x = 482,530.14

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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.