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Finding the Fourth Proportional to 679,580.68, 937,796.12 and 373,638.87

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Solution

The fourth proportional to 679,580.68, 937,796.12 and 373,638.87 is: 515,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,580.68 : 937,796.12 = 373,638.87 : x
  2. Step 2: Convert to fraction form
    679,580.68/937,796.12 = 373,638.87/x
  3. Step 3: Cross multiply
    679,580.68x = 937,796.12 × 373,638.87
  4. Step 4: Simplify right side
    679,580.68x = 350,397,082,567.18
  5. Step 5: Solve for x
    x = 350,397,082,567.18/679,580.68
  6. Step 6: Final answer
    x = 515,607.78

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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.