Home / 680,930.80-1,021,396.20-607,447.60

Finding the Fourth Proportional to 680,930.80, 1,021,396.20 and 607,447.60

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Solution

The fourth proportional to 680,930.80, 1,021,396.20 and 607,447.60 is: 911,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,930.80 : 1,021,396.20 = 607,447.60 : x
  2. Step 2: Convert to fraction form
    680,930.80/1,021,396.20 = 607,447.60/x
  3. Step 3: Cross multiply
    680,930.80x = 1,021,396.20 × 607,447.60
  4. Step 4: Simplify right side
    680,930.80x = 620,444,670,339.12
  5. Step 5: Solve for x
    x = 620,444,670,339.12/680,930.80
  6. Step 6: Final answer
    x = 911,171.40

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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.