Home / 3,105,314.23-4,285,287.40-1,728,655.44

Finding the Fourth Proportional to 3,105,314.23, 4,285,287.40 and 1,728,655.44

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Solution

The fourth proportional to 3,105,314.23, 4,285,287.40 and 1,728,655.44 is: 2,385,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,314.23 : 4,285,287.40 = 1,728,655.44 : x
  2. Step 2: Convert to fraction form
    3,105,314.23/4,285,287.40 = 1,728,655.44/x
  3. Step 3: Cross multiply
    3,105,314.23x = 4,285,287.40 × 1,728,655.44
  4. Step 4: Simplify right side
    3,105,314.23x = 7,407,785,375,973.46
  5. Step 5: Solve for x
    x = 7,407,785,375,973.46/3,105,314.23
  6. Step 6: Final answer
    x = 2,385,518.77

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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.