Home / 3,118,326.82-4,303,291-1,687,542.82

Finding the Fourth Proportional to 3,118,326.82, 4,303,291 and 1,687,542.82

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Solution

The fourth proportional to 3,118,326.82, 4,303,291 and 1,687,542.82 is: 2,328,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,326.82 : 4,303,291 = 1,687,542.82 : x
  2. Step 2: Convert to fraction form
    3,118,326.82/4,303,291 = 1,687,542.82/x
  3. Step 3: Cross multiply
    3,118,326.82x = 4,303,291 × 1,687,542.82
  4. Step 4: Simplify right side
    3,118,326.82x = 7,261,987,829,420.62
  5. Step 5: Solve for x
    x = 7,261,987,829,420.62/3,118,326.82
  6. Step 6: Final answer
    x = 2,328,809.09

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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.