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Finding the Fourth Proportional to 679,159.29, 937,194.48 and 373,229.09

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Solution

The fourth proportional to 679,159.29, 937,194.48 and 373,229.09 is: 515,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,159.29 : 937,194.48 = 373,229.09 : x
  2. Step 2: Convert to fraction form
    679,159.29/937,194.48 = 373,229.09/x
  3. Step 3: Cross multiply
    679,159.29x = 937,194.48 × 373,229.09
  4. Step 4: Simplify right side
    679,159.29x = 349,788,238,237.45
  5. Step 5: Solve for x
    x = 349,788,238,237.45/679,159.29
  6. Step 6: Final answer
    x = 515,031.22

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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.