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Finding the Fourth Proportional to 406,986.70, 610,470.45 and 111,498.70

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Solution

The fourth proportional to 406,986.70, 610,470.45 and 111,498.70 is: 167,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,986.70 : 610,470.45 = 111,498.70 : x
  2. Step 2: Convert to fraction form
    406,986.70/610,470.45 = 111,498.70/x
  3. Step 3: Cross multiply
    406,986.70x = 610,470.45 × 111,498.70
  4. Step 4: Simplify right side
    406,986.70x = 68,066,661,563.42
  5. Step 5: Solve for x
    x = 68,066,661,563.42/406,986.70
  6. Step 6: Final answer
    x = 167,245.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.