Home / 2,945,149.98-4,417,731.05-815,240.40

Finding the Fourth Proportional to 2,945,149.98, 4,417,731.05 and 815,240.40

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Solution

The fourth proportional to 2,945,149.98, 4,417,731.05 and 815,240.40 is: 1,222,862.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,149.98 : 4,417,731.05 = 815,240.40 : x
  2. Step 2: Convert to fraction form
    2,945,149.98/4,417,731.05 = 815,240.40/x
  3. Step 3: Cross multiply
    2,945,149.98x = 4,417,731.05 × 815,240.40
  4. Step 4: Simplify right side
    2,945,149.98x = 3,601,512,824,218.22
  5. Step 5: Solve for x
    x = 3,601,512,824,218.22/2,945,149.98
  6. Step 6: Final answer
    x = 1,222,862.28

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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.