Home / 674,388.66-1,012,081.74-319,403.34

Finding the Fourth Proportional to 674,388.66, 1,012,081.74 and 319,403.34

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Solution

The fourth proportional to 674,388.66, 1,012,081.74 and 319,403.34 is: 479,341.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,388.66 : 1,012,081.74 = 319,403.34 : x
  2. Step 2: Convert to fraction form
    674,388.66/1,012,081.74 = 319,403.34/x
  3. Step 3: Cross multiply
    674,388.66x = 1,012,081.74 × 319,403.34
  4. Step 4: Simplify right side
    674,388.66x = 323,262,288,109.01
  5. Step 5: Solve for x
    x = 323,262,288,109.01/674,388.66
  6. Step 6: Final answer
    x = 479,341.23

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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.