Home / 1,278,401.24-1,918,334.52-520,102.73

Finding the Fourth Proportional to 1,278,401.24, 1,918,334.52 and 520,102.73

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Solution

The fourth proportional to 1,278,401.24, 1,918,334.52 and 520,102.73 is: 780,452.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,401.24 : 1,918,334.52 = 520,102.73 : x
  2. Step 2: Convert to fraction form
    1,278,401.24/1,918,334.52 = 520,102.73/x
  3. Step 3: Cross multiply
    1,278,401.24x = 1,918,334.52 × 520,102.73
  4. Step 4: Simplify right side
    1,278,401.24x = 997,731,020,905.24
  5. Step 5: Solve for x
    x = 997,731,020,905.24/1,278,401.24
  6. Step 6: Final answer
    x = 780,452.17

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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.