Home / 743,889.60-1,115,834.40-494,571.60

Finding the Fourth Proportional to 743,889.60, 1,115,834.40 and 494,571.60

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Solution

The fourth proportional to 743,889.60, 1,115,834.40 and 494,571.60 is: 741,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,889.60 : 1,115,834.40 = 494,571.60 : x
  2. Step 2: Convert to fraction form
    743,889.60/1,115,834.40 = 494,571.60/x
  3. Step 3: Cross multiply
    743,889.60x = 1,115,834.40 × 494,571.60
  4. Step 4: Simplify right side
    743,889.60x = 551,860,004,543.04
  5. Step 5: Solve for x
    x = 551,860,004,543.04/743,889.60
  6. Step 6: Final answer
    x = 741,857.40

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Double scale
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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.