Home / 887,086.60-1,330,629.90-413,819.80

Finding the Fourth Proportional to 887,086.60, 1,330,629.90 and 413,819.80

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Solution

The fourth proportional to 887,086.60, 1,330,629.90 and 413,819.80 is: 620,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,086.60 : 1,330,629.90 = 413,819.80 : x
  2. Step 2: Convert to fraction form
    887,086.60/1,330,629.90 = 413,819.80/x
  3. Step 3: Cross multiply
    887,086.60x = 1,330,629.90 × 413,819.80
  4. Step 4: Simplify right side
    887,086.60x = 550,640,999,092.02
  5. Step 5: Solve for x
    x = 550,640,999,092.02/887,086.60
  6. Step 6: Final answer
    x = 620,729.70

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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.