Home / 1,368,819.54-1,888,674.20-765,186.90

Finding the Fourth Proportional to 1,368,819.54, 1,888,674.20 and 765,186.90

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Solution

The fourth proportional to 1,368,819.54, 1,888,674.20 and 765,186.90 is: 1,055,792.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,819.54 : 1,888,674.20 = 765,186.90 : x
  2. Step 2: Convert to fraction form
    1,368,819.54/1,888,674.20 = 765,186.90/x
  3. Step 3: Cross multiply
    1,368,819.54x = 1,888,674.20 × 765,186.90
  4. Step 4: Simplify right side
    1,368,819.54x = 1,445,188,756,207.98
  5. Step 5: Solve for x
    x = 1,445,188,756,207.98/1,368,819.54
  6. Step 6: Final answer
    x = 1,055,792.03

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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.