Home / 680,523.20-1,021,173.60-260,100.80

Finding the Fourth Proportional to 680,523.20, 1,021,173.60 and 260,100.80

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Solution

The fourth proportional to 680,523.20, 1,021,173.60 and 260,100.80 is: 390,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,523.20 : 1,021,173.60 = 260,100.80 : x
  2. Step 2: Convert to fraction form
    680,523.20/1,021,173.60 = 260,100.80/x
  3. Step 3: Cross multiply
    680,523.20x = 1,021,173.60 × 260,100.80
  4. Step 4: Simplify right side
    680,523.20x = 265,608,070,298.88
  5. Step 5: Solve for x
    x = 265,608,070,298.88/680,523.20
  6. Step 6: Final answer
    x = 390,299.80

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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.