Home / 751,687.76-1,127,777.40-278,407.76

Finding the Fourth Proportional to 751,687.76, 1,127,777.40 and 278,407.76

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Solution

The fourth proportional to 751,687.76, 1,127,777.40 and 278,407.76 is: 417,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,687.76 : 1,127,777.40 = 278,407.76 : x
  2. Step 2: Convert to fraction form
    751,687.76/1,127,777.40 = 278,407.76/x
  3. Step 3: Cross multiply
    751,687.76x = 1,127,777.40 × 278,407.76
  4. Step 4: Simplify right side
    751,687.76x = 313,981,979,712.62
  5. Step 5: Solve for x
    x = 313,981,979,712.62/751,687.76
  6. Step 6: Final answer
    x = 417,702.66

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1.5x scale

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.