Home / 1,515,113.28-2,090,900.79-826,829.55

Finding the Fourth Proportional to 1,515,113.28, 2,090,900.79 and 826,829.55

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Solution

The fourth proportional to 1,515,113.28, 2,090,900.79 and 826,829.55 is: 1,141,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,113.28 : 2,090,900.79 = 826,829.55 : x
  2. Step 2: Convert to fraction form
    1,515,113.28/2,090,900.79 = 826,829.55/x
  3. Step 3: Cross multiply
    1,515,113.28x = 2,090,900.79 × 826,829.55
  4. Step 4: Simplify right side
    1,515,113.28x = 1,728,818,560,025.36
  5. Step 5: Solve for x
    x = 1,728,818,560,025.36/1,515,113.28
  6. Step 6: Final answer
    x = 1,141,049.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.