Home / 1,276,105.68-1,914,490.80-477,449.64

Finding the Fourth Proportional to 1,276,105.68, 1,914,490.80 and 477,449.64

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Solution

The fourth proportional to 1,276,105.68, 1,914,490.80 and 477,449.64 is: 716,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,105.68 : 1,914,490.80 = 477,449.64 : x
  2. Step 2: Convert to fraction form
    1,276,105.68/1,914,490.80 = 477,449.64/x
  3. Step 3: Cross multiply
    1,276,105.68x = 1,914,490.80 × 477,449.64
  4. Step 4: Simplify right side
    1,276,105.68x = 914,072,943,243.31
  5. Step 5: Solve for x
    x = 914,072,943,243.31/1,276,105.68
  6. Step 6: Final answer
    x = 716,298.78

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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.