Home / 1,384,812.60-2,078,127.15-486,231.18

Finding the Fourth Proportional to 1,384,812.60, 2,078,127.15 and 486,231.18

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Solution

The fourth proportional to 1,384,812.60, 2,078,127.15 and 486,231.18 is: 729,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,812.60 : 2,078,127.15 = 486,231.18 : x
  2. Step 2: Convert to fraction form
    1,384,812.60/2,078,127.15 = 486,231.18/x
  3. Step 3: Cross multiply
    1,384,812.60x = 2,078,127.15 × 486,231.18
  4. Step 4: Simplify right side
    1,384,812.60x = 1,010,450,216,334.54
  5. Step 5: Solve for x
    x = 1,010,450,216,334.54/1,384,812.60
  6. Step 6: Final answer
    x = 729,665.67

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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.