Home / 591,378.09-816,102.06-319,445.97

Finding the Fourth Proportional to 591,378.09, 816,102.06 and 319,445.97

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Solution

The fourth proportional to 591,378.09, 816,102.06 and 319,445.97 is: 440,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,378.09 : 816,102.06 = 319,445.97 : x
  2. Step 2: Convert to fraction form
    591,378.09/816,102.06 = 319,445.97/x
  3. Step 3: Cross multiply
    591,378.09x = 816,102.06 × 319,445.97
  4. Step 4: Simplify right side
    591,378.09x = 260,700,514,175.70
  5. Step 5: Solve for x
    x = 260,700,514,175.70/591,378.09
  6. Step 6: Final answer
    x = 440,835.60

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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.