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Finding the Fourth Proportional to 479,559.11, 661,552.72 and 334,668.74

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Solution

The fourth proportional to 479,559.11, 661,552.72 and 334,668.74 is: 461,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,559.11 : 661,552.72 = 334,668.74 : x
  2. Step 2: Convert to fraction form
    479,559.11/661,552.72 = 334,668.74/x
  3. Step 3: Cross multiply
    479,559.11x = 661,552.72 × 334,668.74
  4. Step 4: Simplify right side
    479,559.11x = 221,401,011,101.54
  5. Step 5: Solve for x
    x = 221,401,011,101.54/479,559.11
  6. Step 6: Final answer
    x = 461,676.17

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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.