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Finding the Fourth Proportional to 679,185.96, 937,235.46 and 377,369.64

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Solution

The fourth proportional to 679,185.96, 937,235.46 and 377,369.64 is: 520,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,185.96 : 937,235.46 = 377,369.64 : x
  2. Step 2: Convert to fraction form
    679,185.96/937,235.46 = 377,369.64/x
  3. Step 3: Cross multiply
    679,185.96x = 937,235.46 × 377,369.64
  4. Step 4: Simplify right side
    679,185.96x = 353,684,208,135.43
  5. Step 5: Solve for x
    x = 353,684,208,135.43/679,185.96
  6. Step 6: Final answer
    x = 520,747.23

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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.