Home / 786,078.46-1,179,059.37-280,581.76

Finding the Fourth Proportional to 786,078.46, 1,179,059.37 and 280,581.76

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Solution

The fourth proportional to 786,078.46, 1,179,059.37 and 280,581.76 is: 420,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,078.46 : 1,179,059.37 = 280,581.76 : x
  2. Step 2: Convert to fraction form
    786,078.46/1,179,059.37 = 280,581.76/x
  3. Step 3: Cross multiply
    786,078.46x = 1,179,059.37 × 280,581.76
  4. Step 4: Simplify right side
    786,078.46x = 330,822,553,179.09
  5. Step 5: Solve for x
    x = 330,822,553,179.09/786,078.46
  6. Step 6: Final answer
    x = 420,851.82

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Double scale
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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.