Home / 497,278.72-686,326.94-293,379.49

Finding the Fourth Proportional to 497,278.72, 686,326.94 and 293,379.49

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Solution

The fourth proportional to 497,278.72, 686,326.94 and 293,379.49 is: 404,912.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,278.72 : 686,326.94 = 293,379.49 : x
  2. Step 2: Convert to fraction form
    497,278.72/686,326.94 = 293,379.49/x
  3. Step 3: Cross multiply
    497,278.72x = 686,326.94 × 293,379.49
  4. Step 4: Simplify right side
    497,278.72x = 201,354,247,630.46
  5. Step 5: Solve for x
    x = 201,354,247,630.46/497,278.72
  6. Step 6: Final answer
    x = 404,912.25

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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.