Home / 2,485,856.13-3,430,447.67-1,398,127.42

Finding the Fourth Proportional to 2,485,856.13, 3,430,447.67 and 1,398,127.42

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Solution

The fourth proportional to 2,485,856.13, 3,430,447.67 and 1,398,127.42 is: 1,929,396.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485,856.13 : 3,430,447.67 = 1,398,127.42 : x
  2. Step 2: Convert to fraction form
    2,485,856.13/3,430,447.67 = 1,398,127.42/x
  3. Step 3: Cross multiply
    2,485,856.13x = 3,430,447.67 × 1,398,127.42
  4. Step 4: Simplify right side
    2,485,856.13x = 4,796,202,947,363.11
  5. Step 5: Solve for x
    x = 4,796,202,947,363.11/2,485,856.13
  6. Step 6: Final answer
    x = 1,929,396.83

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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.