Home / 680,520.20-1,021,169.10-260,097.80

Finding the Fourth Proportional to 680,520.20, 1,021,169.10 and 260,097.80

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Solution

The fourth proportional to 680,520.20, 1,021,169.10 and 260,097.80 is: 390,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,520.20 : 1,021,169.10 = 260,097.80 : x
  2. Step 2: Convert to fraction form
    680,520.20/1,021,169.10 = 260,097.80/x
  3. Step 3: Cross multiply
    680,520.20x = 1,021,169.10 × 260,097.80
  4. Step 4: Simplify right side
    680,520.20x = 265,603,836,337.98
  5. Step 5: Solve for x
    x = 265,603,836,337.98/680,520.20
  6. Step 6: Final answer
    x = 390,295.30

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Double scale
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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.