Home / 1,515,641.75-2,091,585.80-836,578.43

Finding the Fourth Proportional to 1,515,641.75, 2,091,585.80 and 836,578.43

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Solution

The fourth proportional to 1,515,641.75, 2,091,585.80 and 836,578.43 is: 1,154,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,641.75 : 2,091,585.80 = 836,578.43 : x
  2. Step 2: Convert to fraction form
    1,515,641.75/2,091,585.80 = 836,578.43/x
  3. Step 3: Cross multiply
    1,515,641.75x = 2,091,585.80 × 836,578.43
  4. Step 4: Simplify right side
    1,515,641.75x = 1,749,775,560,591.40
  5. Step 5: Solve for x
    x = 1,749,775,560,591.40/1,515,641.75
  6. Step 6: Final answer
    x = 1,154,478.33

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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.