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Finding the Fourth Proportional to 691,668.88, 954,674.20 and 471,270.78

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Solution

The fourth proportional to 691,668.88, 954,674.20 and 471,270.78 is: 650,470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,668.88 : 954,674.20 = 471,270.78 : x
  2. Step 2: Convert to fraction form
    691,668.88/954,674.20 = 471,270.78/x
  3. Step 3: Cross multiply
    691,668.88x = 954,674.20 × 471,270.78
  4. Step 4: Simplify right side
    691,668.88x = 449,910,054,879.88
  5. Step 5: Solve for x
    x = 449,910,054,879.88/691,668.88
  6. Step 6: Final answer
    x = 650,470.29

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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.