Home / 617,977.20-926,447.40-322,489.20

Finding the Fourth Proportional to 617,977.20, 926,447.40 and 322,489.20

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Solution

The fourth proportional to 617,977.20, 926,447.40 and 322,489.20 is: 483,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,977.20 : 926,447.40 = 322,489.20 : x
  2. Step 2: Convert to fraction form
    617,977.20/926,447.40 = 322,489.20/x
  3. Step 3: Cross multiply
    617,977.20x = 926,447.40 × 322,489.20
  4. Step 4: Simplify right side
    617,977.20x = 298,769,280,868.08
  5. Step 5: Solve for x
    x = 298,769,280,868.08/617,977.20
  6. Step 6: Final answer
    x = 483,463.27

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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.