Home / 981,408.06-1,355,371.23-676,277.82

Finding the Fourth Proportional to 981,408.06, 1,355,371.23 and 676,277.82

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Solution

The fourth proportional to 981,408.06, 1,355,371.23 and 676,277.82 is: 933,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,408.06 : 1,355,371.23 = 676,277.82 : x
  2. Step 2: Convert to fraction form
    981,408.06/1,355,371.23 = 676,277.82/x
  3. Step 3: Cross multiply
    981,408.06x = 1,355,371.23 × 676,277.82
  4. Step 4: Simplify right side
    981,408.06x = 916,607,500,715.12
  5. Step 5: Solve for x
    x = 916,607,500,715.12/981,408.06
  6. Step 6: Final answer
    x = 933,971.85

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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.