Home / 781,415.60-1,172,512.20-444,714.80

Finding the Fourth Proportional to 781,415.60, 1,172,512.20 and 444,714.80

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Solution

The fourth proportional to 781,415.60, 1,172,512.20 and 444,714.80 is: 667,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,415.60 : 1,172,512.20 = 444,714.80 : x
  2. Step 2: Convert to fraction form
    781,415.60/1,172,512.20 = 444,714.80/x
  3. Step 3: Cross multiply
    781,415.60x = 1,172,512.20 × 444,714.80
  4. Step 4: Simplify right side
    781,415.60x = 521,433,528,520.56
  5. Step 5: Solve for x
    x = 521,433,528,520.56/781,415.60
  6. Step 6: Final answer
    x = 667,293.47

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1.5x scale

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.