Home / 981,409.06-1,355,372.61-676,278.82

Finding the Fourth Proportional to 981,409.06, 1,355,372.61 and 676,278.82

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Solution

The fourth proportional to 981,409.06, 1,355,372.61 and 676,278.82 is: 933,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,409.06 : 1,355,372.61 = 676,278.82 : x
  2. Step 2: Convert to fraction form
    981,409.06/1,355,372.61 = 676,278.82/x
  3. Step 3: Cross multiply
    981,409.06x = 1,355,372.61 × 676,278.82
  4. Step 4: Simplify right side
    981,409.06x = 916,609,789,351.12
  5. Step 5: Solve for x
    x = 916,609,789,351.12/981,409.06
  6. Step 6: Final answer
    x = 933,973.23

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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.