Home / 1,400,512.60-2,100,768.90-1,276,509.70

Finding the Fourth Proportional to 1,400,512.60, 2,100,768.90 and 1,276,509.70

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Solution

The fourth proportional to 1,400,512.60, 2,100,768.90 and 1,276,509.70 is: 1,914,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,512.60 : 2,100,768.90 = 1,276,509.70 : x
  2. Step 2: Convert to fraction form
    1,400,512.60/2,100,768.90 = 1,276,509.70/x
  3. Step 3: Cross multiply
    1,400,512.60x = 2,100,768.90 × 1,276,509.70
  4. Step 4: Simplify right side
    1,400,512.60x = 2,681,651,878,308.33
  5. Step 5: Solve for x
    x = 2,681,651,878,308.33/1,400,512.60
  6. Step 6: Final answer
    x = 1,914,764.55

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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.