Home / 690,945.93-1,036,456.02-217,668.33

Finding the Fourth Proportional to 690,945.93, 1,036,456.02 and 217,668.33

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Solution

The fourth proportional to 690,945.93, 1,036,456.02 and 217,668.33 is: 326,514.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,945.93 : 1,036,456.02 = 217,668.33 : x
  2. Step 2: Convert to fraction form
    690,945.93/1,036,456.02 = 217,668.33/x
  3. Step 3: Cross multiply
    690,945.93x = 1,036,456.02 × 217,668.33
  4. Step 4: Simplify right side
    690,945.93x = 225,603,650,991.85
  5. Step 5: Solve for x
    x = 225,603,650,991.85/690,945.93
  6. Step 6: Final answer
    x = 326,514.19

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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.