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Finding the Fourth Proportional to 487,757.42, 673,131.40 and 272,884.64

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Solution

The fourth proportional to 487,757.42, 673,131.40 and 272,884.64 is: 376,595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,757.42 : 673,131.40 = 272,884.64 : x
  2. Step 2: Convert to fraction form
    487,757.42/673,131.40 = 272,884.64/x
  3. Step 3: Cross multiply
    487,757.42x = 673,131.40 × 272,884.64
  4. Step 4: Simplify right side
    487,757.42x = 183,687,219,761.70
  5. Step 5: Solve for x
    x = 183,687,219,761.70/487,757.42
  6. Step 6: Final answer
    x = 376,595.44

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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.