Home / 847,099.09-1,270,804.56-278,512.30

Finding the Fourth Proportional to 847,099.09, 1,270,804.56 and 278,512.30

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Solution

The fourth proportional to 847,099.09, 1,270,804.56 and 278,512.30 is: 417,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,099.09 : 1,270,804.56 = 278,512.30 : x
  2. Step 2: Convert to fraction form
    847,099.09/1,270,804.56 = 278,512.30/x
  3. Step 3: Cross multiply
    847,099.09x = 1,270,804.56 × 278,512.30
  4. Step 4: Simplify right side
    847,099.09x = 353,934,700,856.09
  5. Step 5: Solve for x
    x = 353,934,700,856.09/847,099.09
  6. Step 6: Final answer
    x = 417,819.72

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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.