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Finding the Fourth Proportional to 679,393.26, 937,583.66 and 373,493.01

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Solution

The fourth proportional to 679,393.26, 937,583.66 and 373,493.01 is: 515,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,393.26 : 937,583.66 = 373,493.01 : x
  2. Step 2: Convert to fraction form
    679,393.26/937,583.66 = 373,493.01/x
  3. Step 3: Cross multiply
    679,393.26x = 937,583.66 × 373,493.01
  4. Step 4: Simplify right side
    679,393.26x = 350,180,941,432.75
  5. Step 5: Solve for x
    x = 350,180,941,432.75/679,393.26
  6. Step 6: Final answer
    x = 515,431.87

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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.