Home / 770,814.14-1,063,016.73-661,881.43

Finding the Fourth Proportional to 770,814.14, 1,063,016.73 and 661,881.43

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Solution

The fourth proportional to 770,814.14, 1,063,016.73 and 661,881.43 is: 912,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,814.14 : 1,063,016.73 = 661,881.43 : x
  2. Step 2: Convert to fraction form
    770,814.14/1,063,016.73 = 661,881.43/x
  3. Step 3: Cross multiply
    770,814.14x = 1,063,016.73 × 661,881.43
  4. Step 4: Simplify right side
    770,814.14x = 703,591,028,051.24
  5. Step 5: Solve for x
    x = 703,591,028,051.24/770,814.14
  6. Step 6: Final answer
    x = 912,789.47

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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.