Home / 850,611.60-1,275,917.40-771,879.60

Finding the Fourth Proportional to 850,611.60, 1,275,917.40 and 771,879.60

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Solution

The fourth proportional to 850,611.60, 1,275,917.40 and 771,879.60 is: 1,157,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,611.60 : 1,275,917.40 = 771,879.60 : x
  2. Step 2: Convert to fraction form
    850,611.60/1,275,917.40 = 771,879.60/x
  3. Step 3: Cross multiply
    850,611.60x = 1,275,917.40 × 771,879.60
  4. Step 4: Simplify right side
    850,611.60x = 984,854,612,345.04
  5. Step 5: Solve for x
    x = 984,854,612,345.04/850,611.60
  6. Step 6: Final answer
    x = 1,157,819.40

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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.