Home / 751,405.05-1,127,477.21-351,976.77

Finding the Fourth Proportional to 751,405.05, 1,127,477.21 and 351,976.77

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Solution

The fourth proportional to 751,405.05, 1,127,477.21 and 351,976.77 is: 528,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,405.05 : 1,127,477.21 = 351,976.77 : x
  2. Step 2: Convert to fraction form
    751,405.05/1,127,477.21 = 351,976.77/x
  3. Step 3: Cross multiply
    751,405.05x = 1,127,477.21 × 351,976.77
  4. Step 4: Simplify right side
    751,405.05x = 396,845,786,624.41
  5. Step 5: Solve for x
    x = 396,845,786,624.41/751,405.05
  6. Step 6: Final answer
    x = 528,138.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.