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Finding the Fourth Proportional to 679,249.55, 937,366.43 and 373,357.28

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Solution

The fourth proportional to 679,249.55, 937,366.43 and 373,357.28 is: 515,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,249.55 : 937,366.43 = 373,357.28 : x
  2. Step 2: Convert to fraction form
    679,249.55/937,366.43 = 373,357.28/x
  3. Step 3: Cross multiply
    679,249.55x = 937,366.43 × 373,357.28
  4. Step 4: Simplify right side
    679,249.55x = 349,972,583,944.92
  5. Step 5: Solve for x
    x = 349,972,583,944.92/679,249.55
  6. Step 6: Final answer
    x = 515,234.18

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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.