Home / 1,086,890.40-1,630,627.20-969,375.60

Finding the Fourth Proportional to 1,086,890.40, 1,630,627.20 and 969,375.60

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Solution

The fourth proportional to 1,086,890.40, 1,630,627.20 and 969,375.60 is: 1,454,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,890.40 : 1,630,627.20 = 969,375.60 : x
  2. Step 2: Convert to fraction form
    1,086,890.40/1,630,627.20 = 969,375.60/x
  3. Step 3: Cross multiply
    1,086,890.40x = 1,630,627.20 × 969,375.60
  4. Step 4: Simplify right side
    1,086,890.40x = 1,580,690,220,376.32
  5. Step 5: Solve for x
    x = 1,580,690,220,376.32/1,086,890.40
  6. Step 6: Final answer
    x = 1,454,323.47

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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.