Home / 455,688.45-628,848.09-251,739.36

Finding the Fourth Proportional to 455,688.45, 628,848.09 and 251,739.36

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Solution

The fourth proportional to 455,688.45, 628,848.09 and 251,739.36 is: 347,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,688.45 : 628,848.09 = 251,739.36 : x
  2. Step 2: Convert to fraction form
    455,688.45/628,848.09 = 251,739.36/x
  3. Step 3: Cross multiply
    455,688.45x = 628,848.09 × 251,739.36
  4. Step 4: Simplify right side
    455,688.45x = 158,305,815,713.82
  5. Step 5: Solve for x
    x = 158,305,815,713.82/455,688.45
  6. Step 6: Final answer
    x = 347,399.23

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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.