Home / 815,277.48-1,217,426.31-665,814.48

Finding the Fourth Proportional to 815,277.48, 1,217,426.31 and 665,814.48

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Solution

The fourth proportional to 815,277.48, 1,217,426.31 and 665,814.48 is: 994,238.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,277.48 : 1,217,426.31 = 665,814.48 : x
  2. Step 2: Convert to fraction form
    815,277.48/1,217,426.31 = 665,814.48/x
  3. Step 3: Cross multiply
    815,277.48x = 1,217,426.31 × 665,814.48
  4. Step 4: Simplify right side
    815,277.48x = 810,580,056,114.77
  5. Step 5: Solve for x
    x = 810,580,056,114.77/815,277.48
  6. Step 6: Final answer
    x = 994,238.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.