Home / 2,188,143.52-3,019,598.40-1,221,256.32

Finding the Fourth Proportional to 2,188,143.52, 3,019,598.40 and 1,221,256.32

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Solution

The fourth proportional to 2,188,143.52, 3,019,598.40 and 1,221,256.32 is: 1,685,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,143.52 : 3,019,598.40 = 1,221,256.32 : x
  2. Step 2: Convert to fraction form
    2,188,143.52/3,019,598.40 = 1,221,256.32/x
  3. Step 3: Cross multiply
    2,188,143.52x = 3,019,598.40 × 1,221,256.32
  4. Step 4: Simplify right side
    2,188,143.52x = 3,687,703,629,861.89
  5. Step 5: Solve for x
    x = 3,687,703,629,861.89/2,188,143.52
  6. Step 6: Final answer
    x = 1,685,311.59

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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.