Home / 1,318,455-1,976,509.62-476,819.64

Finding the Fourth Proportional to 1,318,455, 1,976,509.62 and 476,819.64

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Solution

The fourth proportional to 1,318,455, 1,976,509.62 and 476,819.64 is: 714,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,455 : 1,976,509.62 = 476,819.64 : x
  2. Step 2: Convert to fraction form
    1,318,455/1,976,509.62 = 476,819.64/x
  3. Step 3: Cross multiply
    1,318,455x = 1,976,509.62 × 476,819.64
  4. Step 4: Simplify right side
    1,318,455x = 942,438,605,464.94
  5. Step 5: Solve for x
    x = 942,438,605,464.94/1,318,455
  6. Step 6: Final answer
    x = 714,805.29

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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.