Home / 1,262,236.80-1,892,433.60-513,897.60

Finding the Fourth Proportional to 1,262,236.80, 1,892,433.60 and 513,897.60

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Solution

The fourth proportional to 1,262,236.80, 1,892,433.60 and 513,897.60 is: 770,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,236.80 : 1,892,433.60 = 513,897.60 : x
  2. Step 2: Convert to fraction form
    1,262,236.80/1,892,433.60 = 513,897.60/x
  3. Step 3: Cross multiply
    1,262,236.80x = 1,892,433.60 × 513,897.60
  4. Step 4: Simplify right side
    1,262,236.80x = 972,517,085,199.36
  5. Step 5: Solve for x
    x = 972,517,085,199.36/1,262,236.80
  6. Step 6: Final answer
    x = 770,471.19

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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.