Home / 489,180.12-674,782.54-307,604.60

Finding the Fourth Proportional to 489,180.12, 674,782.54 and 307,604.60

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Solution

The fourth proportional to 489,180.12, 674,782.54 and 307,604.60 is: 424,314.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,180.12 : 674,782.54 = 307,604.60 : x
  2. Step 2: Convert to fraction form
    489,180.12/674,782.54 = 307,604.60/x
  3. Step 3: Cross multiply
    489,180.12x = 674,782.54 × 307,604.60
  4. Step 4: Simplify right side
    489,180.12x = 207,566,213,303.68
  5. Step 5: Solve for x
    x = 207,566,213,303.68/489,180.12
  6. Step 6: Final answer
    x = 424,314.49

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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.