Home / 1,386,583.96-2,089,340.40-1,139,401.62

Finding the Fourth Proportional to 1,386,583.96, 2,089,340.40 and 1,139,401.62

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Solution

The fourth proportional to 1,386,583.96, 2,089,340.40 and 1,139,401.62 is: 1,716,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,583.96 : 2,089,340.40 = 1,139,401.62 : x
  2. Step 2: Convert to fraction form
    1,386,583.96/2,089,340.40 = 1,139,401.62/x
  3. Step 3: Cross multiply
    1,386,583.96x = 2,089,340.40 × 1,139,401.62
  4. Step 4: Simplify right side
    1,386,583.96x = 2,380,597,836,491.45
  5. Step 5: Solve for x
    x = 2,380,597,836,491.45/1,386,583.96
  6. Step 6: Final answer
    x = 1,716,879.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.