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Finding the Fourth Proportional to 679,634.70, 937,919.94 and 373,734.30

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Solution

The fourth proportional to 679,634.70, 937,919.94 and 373,734.30 is: 515,766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,634.70 : 937,919.94 = 373,734.30 : x
  2. Step 2: Convert to fraction form
    679,634.70/937,919.94 = 373,734.30/x
  3. Step 3: Cross multiply
    679,634.70x = 937,919.94 × 373,734.30
  4. Step 4: Simplify right side
    679,634.70x = 350,532,852,231.94
  5. Step 5: Solve for x
    x = 350,532,852,231.94/679,634.70
  6. Step 6: Final answer
    x = 515,766.56

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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.