Home / 709,454.52-979,067.88-387,185.36

Finding the Fourth Proportional to 709,454.52, 979,067.88 and 387,185.36

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Solution

The fourth proportional to 709,454.52, 979,067.88 and 387,185.36 is: 534,327.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,454.52 : 979,067.88 = 387,185.36 : x
  2. Step 2: Convert to fraction form
    709,454.52/979,067.88 = 387,185.36/x
  3. Step 3: Cross multiply
    709,454.52x = 979,067.88 × 387,185.36
  4. Step 4: Simplify right side
    709,454.52x = 379,080,749,582.24
  5. Step 5: Solve for x
    x = 379,080,749,582.24/709,454.52
  6. Step 6: Final answer
    x = 534,327.06

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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.