Home / 1,567,969.22-2,164,725.09-987,689.78

Finding the Fourth Proportional to 1,567,969.22, 2,164,725.09 and 987,689.78

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Solution

The fourth proportional to 1,567,969.22, 2,164,725.09 and 987,689.78 is: 1,363,596.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567,969.22 : 2,164,725.09 = 987,689.78 : x
  2. Step 2: Convert to fraction form
    1,567,969.22/2,164,725.09 = 987,689.78/x
  3. Step 3: Cross multiply
    1,567,969.22x = 2,164,725.09 × 987,689.78
  4. Step 4: Simplify right side
    1,567,969.22x = 2,138,076,847,902.58
  5. Step 5: Solve for x
    x = 2,138,076,847,902.58/1,567,969.22
  6. Step 6: Final answer
    x = 1,363,596.19

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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.