Home / 684,619.39-944,456.56-442,979.89

Finding the Fourth Proportional to 684,619.39, 944,456.56 and 442,979.89

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Solution

The fourth proportional to 684,619.39, 944,456.56 and 442,979.89 is: 611,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,619.39 : 944,456.56 = 442,979.89 : x
  2. Step 2: Convert to fraction form
    684,619.39/944,456.56 = 442,979.89/x
  3. Step 3: Cross multiply
    684,619.39x = 944,456.56 × 442,979.89
  4. Step 4: Simplify right side
    684,619.39x = 418,375,259,589.99
  5. Step 5: Solve for x
    x = 418,375,259,589.99/684,619.39
  6. Step 6: Final answer
    x = 611,106.35

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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.