Home / 489,880.20-675,988.02-274,971

Finding the Fourth Proportional to 489,880.20, 675,988.02 and 274,971

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Solution

The fourth proportional to 489,880.20, 675,988.02 and 274,971 is: 379,433.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,880.20 : 675,988.02 = 274,971 : x
  2. Step 2: Convert to fraction form
    489,880.20/675,988.02 = 274,971/x
  3. Step 3: Cross multiply
    489,880.20x = 675,988.02 × 274,971
  4. Step 4: Simplify right side
    489,880.20x = 185,877,101,847.42
  5. Step 5: Solve for x
    x = 185,877,101,847.42/489,880.20
  6. Step 6: Final answer
    x = 379,433.79

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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.