Home / 3,979,350.21-5,970,287.03-1,420,510.32

Finding the Fourth Proportional to 3,979,350.21, 5,970,287.03 and 1,420,510.32

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Solution

The fourth proportional to 3,979,350.21, 5,970,287.03 and 1,420,510.32 is: 2,131,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,350.21 : 5,970,287.03 = 1,420,510.32 : x
  2. Step 2: Convert to fraction form
    3,979,350.21/5,970,287.03 = 1,420,510.32/x
  3. Step 3: Cross multiply
    3,979,350.21x = 5,970,287.03 × 1,420,510.32
  4. Step 4: Simplify right side
    3,979,350.21x = 8,480,854,341,566.71
  5. Step 5: Solve for x
    x = 8,480,854,341,566.71/3,979,350.21
  6. Step 6: Final answer
    x = 2,131,215.87

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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.