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Finding the Fourth Proportional to 497,223.48, 686,217.96 and 303,620.52

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Solution

The fourth proportional to 497,223.48, 686,217.96 and 303,620.52 is: 419,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,223.48 : 686,217.96 = 303,620.52 : x
  2. Step 2: Convert to fraction form
    497,223.48/686,217.96 = 303,620.52/x
  3. Step 3: Cross multiply
    497,223.48x = 686,217.96 × 303,620.52
  4. Step 4: Simplify right side
    497,223.48x = 208,349,853,848.54
  5. Step 5: Solve for x
    x = 208,349,853,848.54/497,223.48
  6. Step 6: Final answer
    x = 419,026.58

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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.