Home / 2,945,514.40-4,418,012.40-815,408.80

Finding the Fourth Proportional to 2,945,514.40, 4,418,012.40 and 815,408.80

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Solution

The fourth proportional to 2,945,514.40, 4,418,012.40 and 815,408.80 is: 1,223,041.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,514.40 : 4,418,012.40 = 815,408.80 : x
  2. Step 2: Convert to fraction form
    2,945,514.40/4,418,012.40 = 815,408.80/x
  3. Step 3: Cross multiply
    2,945,514.40x = 4,418,012.40 × 815,408.80
  4. Step 4: Simplify right side
    2,945,514.40x = 3,602,486,189,469.12
  5. Step 5: Solve for x
    x = 3,602,486,189,469.12/2,945,514.40
  6. Step 6: Final answer
    x = 1,223,041.45

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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.