Home / 2,221,228.71-3,331,843.09-538,332.21

Finding the Fourth Proportional to 2,221,228.71, 3,331,843.09 and 538,332.21

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Solution

The fourth proportional to 2,221,228.71, 3,331,843.09 and 538,332.21 is: 807,498.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221,228.71 : 3,331,843.09 = 538,332.21 : x
  2. Step 2: Convert to fraction form
    2,221,228.71/3,331,843.09 = 538,332.21/x
  3. Step 3: Cross multiply
    2,221,228.71x = 3,331,843.09 × 538,332.21
  4. Step 4: Simplify right side
    2,221,228.71x = 1,793,638,465,161.51
  5. Step 5: Solve for x
    x = 1,793,638,465,161.51/2,221,228.71
  6. Step 6: Final answer
    x = 807,498.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.