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Finding the Fourth Proportional to 679,252.89, 937,378.71 and 373,357.56

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Solution

The fourth proportional to 679,252.89, 937,378.71 and 373,357.56 is: 515,238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,252.89 : 937,378.71 = 373,357.56 : x
  2. Step 2: Convert to fraction form
    679,252.89/937,378.71 = 373,357.56/x
  3. Step 3: Cross multiply
    679,252.89x = 937,378.71 × 373,357.56
  4. Step 4: Simplify right side
    679,252.89x = 349,977,427,961.55
  5. Step 5: Solve for x
    x = 349,977,427,961.55/679,252.89
  6. Step 6: Final answer
    x = 515,238.78

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Double scale
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Similar ratio
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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.