Home / 709,853.97-979,619.91-403,974.24

Finding the Fourth Proportional to 709,853.97, 979,619.91 and 403,974.24

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Solution

The fourth proportional to 709,853.97, 979,619.91 and 403,974.24 is: 557,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,853.97 : 979,619.91 = 403,974.24 : x
  2. Step 2: Convert to fraction form
    709,853.97/979,619.91 = 403,974.24/x
  3. Step 3: Cross multiply
    709,853.97x = 979,619.91 × 403,974.24
  4. Step 4: Simplify right side
    709,853.97x = 395,741,208,631.12
  5. Step 5: Solve for x
    x = 395,741,208,631.12/709,853.97
  6. Step 6: Final answer
    x = 557,496.65

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1.5x scale

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.