Home / 1,276,606.20-1,914,909.30-744,727.80

Finding the Fourth Proportional to 1,276,606.20, 1,914,909.30 and 744,727.80

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Solution

The fourth proportional to 1,276,606.20, 1,914,909.30 and 744,727.80 is: 1,117,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,606.20 : 1,914,909.30 = 744,727.80 : x
  2. Step 2: Convert to fraction form
    1,276,606.20/1,914,909.30 = 744,727.80/x
  3. Step 3: Cross multiply
    1,276,606.20x = 1,914,909.30 × 744,727.80
  4. Step 4: Simplify right side
    1,276,606.20x = 1,426,086,190,188.54
  5. Step 5: Solve for x
    x = 1,426,086,190,188.54/1,276,606.20
  6. Step 6: Final answer
    x = 1,117,091.70

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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.