Home / 748,431.60-1,122,647.40-449,833.20

Finding the Fourth Proportional to 748,431.60, 1,122,647.40 and 449,833.20

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Solution

The fourth proportional to 748,431.60, 1,122,647.40 and 449,833.20 is: 674,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,431.60 : 1,122,647.40 = 449,833.20 : x
  2. Step 2: Convert to fraction form
    748,431.60/1,122,647.40 = 449,833.20/x
  3. Step 3: Cross multiply
    748,431.60x = 1,122,647.40 × 449,833.20
  4. Step 4: Simplify right side
    748,431.60x = 505,004,072,413.68
  5. Step 5: Solve for x
    x = 505,004,072,413.68/748,431.60
  6. Step 6: Final answer
    x = 674,749.80

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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.