Home / 1,276,733.64-1,915,380.60-378,245.64

Finding the Fourth Proportional to 1,276,733.64, 1,915,380.60 and 378,245.64

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Solution

The fourth proportional to 1,276,733.64, 1,915,380.60 and 378,245.64 is: 567,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,733.64 : 1,915,380.60 = 378,245.64 : x
  2. Step 2: Convert to fraction form
    1,276,733.64/1,915,380.60 = 378,245.64/x
  3. Step 3: Cross multiply
    1,276,733.64x = 1,915,380.60 × 378,245.64
  4. Step 4: Simplify right side
    1,276,733.64x = 724,484,360,890.58
  5. Step 5: Solve for x
    x = 724,484,360,890.58/1,276,733.64
  6. Step 6: Final answer
    x = 567,451.45

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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.