Home / 690,668.73-1,036,151.33-391,292.73

Finding the Fourth Proportional to 690,668.73, 1,036,151.33 and 391,292.73

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Solution

The fourth proportional to 690,668.73, 1,036,151.33 and 391,292.73 is: 587,023.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,668.73 : 1,036,151.33 = 391,292.73 : x
  2. Step 2: Convert to fraction form
    690,668.73/1,036,151.33 = 391,292.73/x
  3. Step 3: Cross multiply
    690,668.73x = 1,036,151.33 × 391,292.73
  4. Step 4: Simplify right side
    690,668.73x = 405,438,480,652.37
  5. Step 5: Solve for x
    x = 405,438,480,652.37/690,668.73
  6. Step 6: Final answer
    x = 587,023.07

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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.