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Finding the Fourth Proportional to 679,442.50, 937,688.97 and 377,694.82

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Solution

The fourth proportional to 679,442.50, 937,688.97 and 377,694.82 is: 521,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,442.50 : 937,688.97 = 377,694.82 : x
  2. Step 2: Convert to fraction form
    679,442.50/937,688.97 = 377,694.82/x
  3. Step 3: Cross multiply
    679,442.50x = 937,688.97 × 377,694.82
  4. Step 4: Simplify right side
    679,442.50x = 354,160,266,740.14
  5. Step 5: Solve for x
    x = 354,160,266,740.14/679,442.50
  6. Step 6: Final answer
    x = 521,251.27

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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.