Home / 850,611.60-1,275,917.40-425,458.80

Finding the Fourth Proportional to 850,611.60, 1,275,917.40 and 425,458.80

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Solution

The fourth proportional to 850,611.60, 1,275,917.40 and 425,458.80 is: 638,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,611.60 : 1,275,917.40 = 425,458.80 : x
  2. Step 2: Convert to fraction form
    850,611.60/1,275,917.40 = 425,458.80/x
  3. Step 3: Cross multiply
    850,611.60x = 1,275,917.40 × 425,458.80
  4. Step 4: Simplify right side
    850,611.60x = 542,850,285,903.12
  5. Step 5: Solve for x
    x = 542,850,285,903.12/850,611.60
  6. Step 6: Final answer
    x = 638,188.20

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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.