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Finding the Fourth Proportional to 499,682.43, 689,559.80 and 270,240.01

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Solution

The fourth proportional to 499,682.43, 689,559.80 and 270,240.01 is: 372,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,682.43 : 689,559.80 = 270,240.01 : x
  2. Step 2: Convert to fraction form
    499,682.43/689,559.80 = 270,240.01/x
  3. Step 3: Cross multiply
    499,682.43x = 689,559.80 × 270,240.01
  4. Step 4: Simplify right side
    499,682.43x = 186,346,644,172.50
  5. Step 5: Solve for x
    x = 186,346,644,172.50/499,682.43
  6. Step 6: Final answer
    x = 372,930.15

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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.