Home / 728,926.80-1,093,390.20-447,531.60

Finding the Fourth Proportional to 728,926.80, 1,093,390.20 and 447,531.60

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Solution

The fourth proportional to 728,926.80, 1,093,390.20 and 447,531.60 is: 671,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,926.80 : 1,093,390.20 = 447,531.60 : x
  2. Step 2: Convert to fraction form
    728,926.80/1,093,390.20 = 447,531.60/x
  3. Step 3: Cross multiply
    728,926.80x = 1,093,390.20 × 447,531.60
  4. Step 4: Simplify right side
    728,926.80x = 489,326,665,630.32
  5. Step 5: Solve for x
    x = 489,326,665,630.32/728,926.80
  6. Step 6: Final answer
    x = 671,297.40

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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.