Home / 489,979.29-676,204.85-272,213.49

Finding the Fourth Proportional to 489,979.29, 676,204.85 and 272,213.49

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Solution

The fourth proportional to 489,979.29, 676,204.85 and 272,213.49 is: 375,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,979.29 : 676,204.85 = 272,213.49 : x
  2. Step 2: Convert to fraction form
    489,979.29/676,204.85 = 272,213.49/x
  3. Step 3: Cross multiply
    489,979.29x = 676,204.85 × 272,213.49
  4. Step 4: Simplify right side
    489,979.29x = 184,072,082,173.43
  5. Step 5: Solve for x
    x = 184,072,082,173.43/489,979.29
  6. Step 6: Final answer
    x = 375,673.19

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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.