Home / 1,318,448-1,976,499.12-476,812.64

Finding the Fourth Proportional to 1,318,448, 1,976,499.12 and 476,812.64

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Solution

The fourth proportional to 1,318,448, 1,976,499.12 and 476,812.64 is: 714,794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,448 : 1,976,499.12 = 476,812.64 : x
  2. Step 2: Convert to fraction form
    1,318,448/1,976,499.12 = 476,812.64/x
  3. Step 3: Cross multiply
    1,318,448x = 1,976,499.12 × 476,812.64
  4. Step 4: Simplify right side
    1,318,448x = 942,419,763,364.88
  5. Step 5: Solve for x
    x = 942,419,763,364.88/1,318,448
  6. Step 6: Final answer
    x = 714,794.79

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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.