Home / 1,328,106.48-1,992,290.88-381,616.56

Finding the Fourth Proportional to 1,328,106.48, 1,992,290.88 and 381,616.56

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Solution

The fourth proportional to 1,328,106.48, 1,992,290.88 and 381,616.56 is: 572,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,106.48 : 1,992,290.88 = 381,616.56 : x
  2. Step 2: Convert to fraction form
    1,328,106.48/1,992,290.88 = 381,616.56/x
  3. Step 3: Cross multiply
    1,328,106.48x = 1,992,290.88 × 381,616.56
  4. Step 4: Simplify right side
    1,328,106.48x = 760,291,192,144.97
  5. Step 5: Solve for x
    x = 760,291,192,144.97/1,328,106.48
  6. Step 6: Final answer
    x = 572,462.53

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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.