Home / 741,635.60-1,112,890.80-489,644.60

Finding the Fourth Proportional to 741,635.60, 1,112,890.80 and 489,644.60

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Solution

The fourth proportional to 741,635.60, 1,112,890.80 and 489,644.60 is: 734,755.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,635.60 : 1,112,890.80 = 489,644.60 : x
  2. Step 2: Convert to fraction form
    741,635.60/1,112,890.80 = 489,644.60/x
  3. Step 3: Cross multiply
    741,635.60x = 1,112,890.80 × 489,644.60
  4. Step 4: Simplify right side
    741,635.60x = 544,920,970,609.68
  5. Step 5: Solve for x
    x = 544,920,970,609.68/741,635.60
  6. Step 6: Final answer
    x = 734,755.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.