Home / 319,579.23-479,434.47-94,919.66

Finding the Fourth Proportional to 319,579.23, 479,434.47 and 94,919.66

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Solution

The fourth proportional to 319,579.23, 479,434.47 and 94,919.66 is: 142,398.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,579.23 : 479,434.47 = 94,919.66 : x
  2. Step 2: Convert to fraction form
    319,579.23/479,434.47 = 94,919.66/x
  3. Step 3: Cross multiply
    319,579.23x = 479,434.47 × 94,919.66
  4. Step 4: Simplify right side
    319,579.23x = 45,507,755,929.44
  5. Step 5: Solve for x
    x = 45,507,755,929.44/319,579.23
  6. Step 6: Final answer
    x = 142,398.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.