Home / 859,611.30-1,288,963.35-290,796.90

Finding the Fourth Proportional to 859,611.30, 1,288,963.35 and 290,796.90

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Solution

The fourth proportional to 859,611.30, 1,288,963.35 and 290,796.90 is: 436,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,611.30 : 1,288,963.35 = 290,796.90 : x
  2. Step 2: Convert to fraction form
    859,611.30/1,288,963.35 = 290,796.90/x
  3. Step 3: Cross multiply
    859,611.30x = 1,288,963.35 × 290,796.90
  4. Step 4: Simplify right side
    859,611.30x = 374,826,546,393.62
  5. Step 5: Solve for x
    x = 374,826,546,393.62/859,611.30
  6. Step 6: Final answer
    x = 436,041.90

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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.