Home / 489,124.73-674,212.05-385,590.12

Finding the Fourth Proportional to 489,124.73, 674,212.05 and 385,590.12

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Solution

The fourth proportional to 489,124.73, 674,212.05 and 385,590.12 is: 531,499.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,124.73 : 674,212.05 = 385,590.12 : x
  2. Step 2: Convert to fraction form
    489,124.73/674,212.05 = 385,590.12/x
  3. Step 3: Cross multiply
    489,124.73x = 674,212.05 × 385,590.12
  4. Step 4: Simplify right side
    489,124.73x = 259,969,505,264.95
  5. Step 5: Solve for x
    x = 259,969,505,264.95/489,124.73
  6. Step 6: Final answer
    x = 531,499.41

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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.