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Finding the Fourth Proportional to 679,243.71, 937,366.02 and 373,348.37

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Solution

The fourth proportional to 679,243.71, 937,366.02 and 373,348.37 is: 515,226.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,243.71 : 937,366.02 = 373,348.37 : x
  2. Step 2: Convert to fraction form
    679,243.71/937,366.02 = 373,348.37/x
  3. Step 3: Cross multiply
    679,243.71x = 937,366.02 × 373,348.37
  4. Step 4: Simplify right side
    679,243.71x = 349,964,078,003.80
  5. Step 5: Solve for x
    x = 349,964,078,003.80/679,243.71
  6. Step 6: Final answer
    x = 515,226.09

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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.