Home / 1,208,181.71-1,815,594.19-1,129,185.22

Finding the Fourth Proportional to 1,208,181.71, 1,815,594.19 and 1,129,185.22

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Solution

The fourth proportional to 1,208,181.71, 1,815,594.19 and 1,129,185.22 is: 1,696,882.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,181.71 : 1,815,594.19 = 1,129,185.22 : x
  2. Step 2: Convert to fraction form
    1,208,181.71/1,815,594.19 = 1,129,185.22/x
  3. Step 3: Cross multiply
    1,208,181.71x = 1,815,594.19 × 1,129,185.22
  4. Step 4: Simplify right side
    1,208,181.71x = 2,050,142,115,787.90
  5. Step 5: Solve for x
    x = 2,050,142,115,787.90/1,208,181.71
  6. Step 6: Final answer
    x = 1,696,882.27

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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.