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Finding the Fourth Proportional to 679,180.96, 937,228.56 and 377,364.64

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Solution

The fourth proportional to 679,180.96, 937,228.56 and 377,364.64 is: 520,740.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,180.96 : 937,228.56 = 377,364.64 : x
  2. Step 2: Convert to fraction form
    679,180.96/937,228.56 = 377,364.64/x
  3. Step 3: Cross multiply
    679,180.96x = 937,228.56 × 377,364.64
  4. Step 4: Simplify right side
    679,180.96x = 353,676,918,142.12
  5. Step 5: Solve for x
    x = 353,676,918,142.12/679,180.96
  6. Step 6: Final answer
    x = 520,740.33

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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.