Home / 801,389.44-1,105,868.52-438,817.60

Finding the Fourth Proportional to 801,389.44, 1,105,868.52 and 438,817.60

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Solution

The fourth proportional to 801,389.44, 1,105,868.52 and 438,817.60 is: 605,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,389.44 : 1,105,868.52 = 438,817.60 : x
  2. Step 2: Convert to fraction form
    801,389.44/1,105,868.52 = 438,817.60/x
  3. Step 3: Cross multiply
    801,389.44x = 1,105,868.52 × 438,817.60
  4. Step 4: Simplify right side
    801,389.44x = 485,274,569,861.95
  5. Step 5: Solve for x
    x = 485,274,569,861.95/801,389.44
  6. Step 6: Final answer
    x = 605,541.51

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1.5x scale

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.