Home / 489,126.04-674,213.86-385,591.43

Finding the Fourth Proportional to 489,126.04, 674,213.86 and 385,591.43

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Solution

The fourth proportional to 489,126.04, 674,213.86 and 385,591.43 is: 531,501.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,126.04 : 674,213.86 = 385,591.43 : x
  2. Step 2: Convert to fraction form
    489,126.04/674,213.86 = 385,591.43/x
  3. Step 3: Cross multiply
    489,126.04x = 674,213.86 × 385,591.43
  4. Step 4: Simplify right side
    489,126.04x = 259,971,088,570.74
  5. Step 5: Solve for x
    x = 259,971,088,570.74/489,126.04
  6. Step 6: Final answer
    x = 531,501.23

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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.