Home / 1,079,189.20-1,619,820.60-547,310.80

Finding the Fourth Proportional to 1,079,189.20, 1,619,820.60 and 547,310.80

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Solution

The fourth proportional to 1,079,189.20, 1,619,820.60 and 547,310.80 is: 821,492.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,189.20 : 1,619,820.60 = 547,310.80 : x
  2. Step 2: Convert to fraction form
    1,079,189.20/1,619,820.60 = 547,310.80/x
  3. Step 3: Cross multiply
    1,079,189.20x = 1,619,820.60 × 547,310.80
  4. Step 4: Simplify right side
    1,079,189.20x = 886,545,308,442.48
  5. Step 5: Solve for x
    x = 886,545,308,442.48/1,079,189.20
  6. Step 6: Final answer
    x = 821,492.01

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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.