Home / 2,485,808.85-3,430,020.74-1,397,870.13

Finding the Fourth Proportional to 2,485,808.85, 3,430,020.74 and 1,397,870.13

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Solution

The fourth proportional to 2,485,808.85, 3,430,020.74 and 1,397,870.13 is: 1,928,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485,808.85 : 3,430,020.74 = 1,397,870.13 : x
  2. Step 2: Convert to fraction form
    2,485,808.85/3,430,020.74 = 1,397,870.13/x
  3. Step 3: Cross multiply
    2,485,808.85x = 3,430,020.74 × 1,397,870.13
  4. Step 4: Simplify right side
    2,485,808.85x = 4,794,723,530,737.14
  5. Step 5: Solve for x
    x = 4,794,723,530,737.14/2,485,808.85
  6. Step 6: Final answer
    x = 1,928,838.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.