Home / 487,675.62-672,976.71-272,811.06

Finding the Fourth Proportional to 487,675.62, 672,976.71 and 272,811.06

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Solution

The fourth proportional to 487,675.62, 672,976.71 and 272,811.06 is: 376,470.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,675.62 : 672,976.71 = 272,811.06 : x
  2. Step 2: Convert to fraction form
    487,675.62/672,976.71 = 272,811.06/x
  3. Step 3: Cross multiply
    487,675.62x = 672,976.71 × 272,811.06
  4. Step 4: Simplify right side
    487,675.62x = 183,595,489,610.41
  5. Step 5: Solve for x
    x = 183,595,489,610.41/487,675.62
  6. Step 6: Final answer
    x = 376,470.51

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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.