Home / 2,945,516.40-4,418,015.40-815,410.80

Finding the Fourth Proportional to 2,945,516.40, 4,418,015.40 and 815,410.80

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Solution

The fourth proportional to 2,945,516.40, 4,418,015.40 and 815,410.80 is: 1,223,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,516.40 : 4,418,015.40 = 815,410.80 : x
  2. Step 2: Convert to fraction form
    2,945,516.40/4,418,015.40 = 815,410.80/x
  3. Step 3: Cross multiply
    2,945,516.40x = 4,418,015.40 × 815,410.80
  4. Step 4: Simplify right side
    2,945,516.40x = 3,602,497,471,726.32
  5. Step 5: Solve for x
    x = 3,602,497,471,726.32/2,945,516.40
  6. Step 6: Final answer
    x = 1,223,044.45

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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.