Home / 887,039.60-1,330,559.40-413,772.80

Finding the Fourth Proportional to 887,039.60, 1,330,559.40 and 413,772.80

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Solution

The fourth proportional to 887,039.60, 1,330,559.40 and 413,772.80 is: 620,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,039.60 : 1,330,559.40 = 413,772.80 : x
  2. Step 2: Convert to fraction form
    887,039.60/1,330,559.40 = 413,772.80/x
  3. Step 3: Cross multiply
    887,039.60x = 1,330,559.40 × 413,772.80
  4. Step 4: Simplify right side
    887,039.60x = 550,549,288,504.32
  5. Step 5: Solve for x
    x = 550,549,288,504.32/887,039.60
  6. Step 6: Final answer
    x = 620,659.20

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Similar ratio
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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.