Home / 876,770.26-1,209,944.73-489,583.78

Finding the Fourth Proportional to 876,770.26, 1,209,944.73 and 489,583.78

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Solution

The fourth proportional to 876,770.26, 1,209,944.73 and 489,583.78 is: 675,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,770.26 : 1,209,944.73 = 489,583.78 : x
  2. Step 2: Convert to fraction form
    876,770.26/1,209,944.73 = 489,583.78/x
  3. Step 3: Cross multiply
    876,770.26x = 1,209,944.73 × 489,583.78
  4. Step 4: Simplify right side
    876,770.26x = 592,369,314,504.48
  5. Step 5: Solve for x
    x = 592,369,314,504.48/876,770.26
  6. Step 6: Final answer
    x = 675,626.61

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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.