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Finding the Fourth Proportional to 679,229.84, 937,342.23 and 373,311.43

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Solution

The fourth proportional to 679,229.84, 937,342.23 and 373,311.43 is: 515,172.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,229.84 : 937,342.23 = 373,311.43 : x
  2. Step 2: Convert to fraction form
    679,229.84/937,342.23 = 373,311.43/x
  3. Step 3: Cross multiply
    679,229.84x = 937,342.23 × 373,311.43
  4. Step 4: Simplify right side
    679,229.84x = 349,920,563,593.98
  5. Step 5: Solve for x
    x = 349,920,563,593.98/679,229.84
  6. Step 6: Final answer
    x = 515,172.54

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1.5x scale

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.