Home / 1,358,498.13-1,876,371.62-990,392.31

Finding the Fourth Proportional to 1,358,498.13, 1,876,371.62 and 990,392.31

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Solution

The fourth proportional to 1,358,498.13, 1,876,371.62 and 990,392.31 is: 1,367,940.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,498.13 : 1,876,371.62 = 990,392.31 : x
  2. Step 2: Convert to fraction form
    1,358,498.13/1,876,371.62 = 990,392.31/x
  3. Step 3: Cross multiply
    1,358,498.13x = 1,876,371.62 × 990,392.31
  4. Step 4: Simplify right side
    1,358,498.13x = 1,858,344,030,317.15
  5. Step 5: Solve for x
    x = 1,858,344,030,317.15/1,358,498.13
  6. Step 6: Final answer
    x = 1,367,940.07

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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.