Home / 1,278,037.60-1,917,328.56-379,481.92

Finding the Fourth Proportional to 1,278,037.60, 1,917,328.56 and 379,481.92

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Solution

The fourth proportional to 1,278,037.60, 1,917,328.56 and 379,481.92 is: 569,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,037.60 : 1,917,328.56 = 379,481.92 : x
  2. Step 2: Convert to fraction form
    1,278,037.60/1,917,328.56 = 379,481.92/x
  3. Step 3: Cross multiply
    1,278,037.60x = 1,917,328.56 × 379,481.92
  4. Step 4: Simplify right side
    1,278,037.60x = 727,591,523,219.64
  5. Step 5: Solve for x
    x = 727,591,523,219.64/1,278,037.60
  6. Step 6: Final answer
    x = 569,303.69

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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.