Home / 751,249.80-1,036,728.66-407,085.87

Finding the Fourth Proportional to 751,249.80, 1,036,728.66 and 407,085.87

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Solution

The fourth proportional to 751,249.80, 1,036,728.66 and 407,085.87 is: 561,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,249.80 : 1,036,728.66 = 407,085.87 : x
  2. Step 2: Convert to fraction form
    751,249.80/1,036,728.66 = 407,085.87/x
  3. Step 3: Cross multiply
    751,249.80x = 1,036,728.66 × 407,085.87
  4. Step 4: Simplify right side
    751,249.80x = 422,037,583,326.39
  5. Step 5: Solve for x
    x = 422,037,583,326.39/751,249.80
  6. Step 6: Final answer
    x = 561,780.62

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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.