Home / 3,312,682.20-4,970,189.70-1,420,003.80

Finding the Fourth Proportional to 3,312,682.20, 4,970,189.70 and 1,420,003.80

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Solution

The fourth proportional to 3,312,682.20, 4,970,189.70 and 1,420,003.80 is: 2,130,505.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312,682.20 : 4,970,189.70 = 1,420,003.80 : x
  2. Step 2: Convert to fraction form
    3,312,682.20/4,970,189.70 = 1,420,003.80/x
  3. Step 3: Cross multiply
    3,312,682.20x = 4,970,189.70 × 1,420,003.80
  4. Step 4: Simplify right side
    3,312,682.20x = 7,057,688,260,720.86
  5. Step 5: Solve for x
    x = 7,057,688,260,720.86/3,312,682.20
  6. Step 6: Final answer
    x = 2,130,505.69

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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.