Home / 6,520,620.80-9,780,493.80-1,728,207.20

Finding the Fourth Proportional to 6,520,620.80, 9,780,493.80 and 1,728,207.20

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Solution

The fourth proportional to 6,520,620.80, 9,780,493.80 and 1,728,207.20 is: 2,592,194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520,620.80 : 9,780,493.80 = 1,728,207.20 : x
  2. Step 2: Convert to fraction form
    6,520,620.80/9,780,493.80 = 1,728,207.20/x
  3. Step 3: Cross multiply
    6,520,620.80x = 9,780,493.80 × 1,728,207.20
  4. Step 4: Simplify right side
    6,520,620.80x = 16,902,719,804,715.36
  5. Step 5: Solve for x
    x = 16,902,719,804,715.36/6,520,620.80
  6. Step 6: Final answer
    x = 2,592,194.87

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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.