Home / 1,382,891.39-2,074,641.74-423,354.25

Finding the Fourth Proportional to 1,382,891.39, 2,074,641.74 and 423,354.25

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Solution

The fourth proportional to 1,382,891.39, 2,074,641.74 and 423,354.25 is: 635,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,891.39 : 2,074,641.74 = 423,354.25 : x
  2. Step 2: Convert to fraction form
    1,382,891.39/2,074,641.74 = 423,354.25/x
  3. Step 3: Cross multiply
    1,382,891.39x = 2,074,641.74 × 423,354.25
  4. Step 4: Simplify right side
    1,382,891.39x = 878,308,402,301.87
  5. Step 5: Solve for x
    x = 878,308,402,301.87/1,382,891.39
  6. Step 6: Final answer
    x = 635,124.64

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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.