Home / 1,586,181.90-2,188,933.82-861,030.12

Finding the Fourth Proportional to 1,586,181.90, 2,188,933.82 and 861,030.12

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Solution

The fourth proportional to 1,586,181.90, 2,188,933.82 and 861,030.12 is: 1,188,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,181.90 : 2,188,933.82 = 861,030.12 : x
  2. Step 2: Convert to fraction form
    1,586,181.90/2,188,933.82 = 861,030.12/x
  3. Step 3: Cross multiply
    1,586,181.90x = 2,188,933.82 × 861,030.12
  4. Step 4: Simplify right side
    1,586,181.90x = 1,884,737,949,706.66
  5. Step 5: Solve for x
    x = 1,884,737,949,706.66/1,586,181.90
  6. Step 6: Final answer
    x = 1,188,223.08

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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.