Home / 681,205.60-1,021,808.40-326,036.80

Finding the Fourth Proportional to 681,205.60, 1,021,808.40 and 326,036.80

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Solution

The fourth proportional to 681,205.60, 1,021,808.40 and 326,036.80 is: 489,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,205.60 : 1,021,808.40 = 326,036.80 : x
  2. Step 2: Convert to fraction form
    681,205.60/1,021,808.40 = 326,036.80/x
  3. Step 3: Cross multiply
    681,205.60x = 1,021,808.40 × 326,036.80
  4. Step 4: Simplify right side
    681,205.60x = 333,147,140,949.12
  5. Step 5: Solve for x
    x = 333,147,140,949.12/681,205.60
  6. Step 6: Final answer
    x = 489,055.20

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Similar ratio
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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.