Home / 3,990,497.80-5,984,580.30-1,431,416.20

Finding the Fourth Proportional to 3,990,497.80, 5,984,580.30 and 1,431,416.20

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Solution

The fourth proportional to 3,990,497.80, 5,984,580.30 and 1,431,416.20 is: 2,146,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,497.80 : 5,984,580.30 = 1,431,416.20 : x
  2. Step 2: Convert to fraction form
    3,990,497.80/5,984,580.30 = 1,431,416.20/x
  3. Step 3: Cross multiply
    3,990,497.80x = 5,984,580.30 × 1,431,416.20
  4. Step 4: Simplify right side
    3,990,497.80x = 8,566,425,191,620.86
  5. Step 5: Solve for x
    x = 8,566,425,191,620.86/3,990,497.80
  6. Step 6: Final answer
    x = 2,146,705.91

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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.