Home / 764,136.12-1,054,513.52-419,977.90

Finding the Fourth Proportional to 764,136.12, 1,054,513.52 and 419,977.90

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Solution

The fourth proportional to 764,136.12, 1,054,513.52 and 419,977.90 is: 579,572.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,136.12 : 1,054,513.52 = 419,977.90 : x
  2. Step 2: Convert to fraction form
    764,136.12/1,054,513.52 = 419,977.90/x
  3. Step 3: Cross multiply
    764,136.12x = 1,054,513.52 × 419,977.90
  4. Step 4: Simplify right side
    764,136.12x = 442,872,373,651.21
  5. Step 5: Solve for x
    x = 442,872,373,651.21/764,136.12
  6. Step 6: Final answer
    x = 579,572.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.