Home / 751,687.26-1,127,776.65-278,407.26

Finding the Fourth Proportional to 751,687.26, 1,127,776.65 and 278,407.26

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Solution

The fourth proportional to 751,687.26, 1,127,776.65 and 278,407.26 is: 417,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,687.26 : 1,127,776.65 = 278,407.26 : x
  2. Step 2: Convert to fraction form
    751,687.26/1,127,776.65 = 278,407.26/x
  3. Step 3: Cross multiply
    751,687.26x = 1,127,776.65 × 278,407.26
  4. Step 4: Simplify right side
    751,687.26x = 313,981,207,018.48
  5. Step 5: Solve for x
    x = 313,981,207,018.48/751,687.26
  6. Step 6: Final answer
    x = 417,701.91

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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.