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Finding the Fourth Proportional to 617,954.20, 926,412.90 and 322,466.20

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Solution

The fourth proportional to 617,954.20, 926,412.90 and 322,466.20 is: 483,428.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,954.20 : 926,412.90 = 322,466.20 : x
  2. Step 2: Convert to fraction form
    617,954.20/926,412.90 = 322,466.20/x
  3. Step 3: Cross multiply
    617,954.20x = 926,412.90 × 322,466.20
  4. Step 4: Simplify right side
    617,954.20x = 298,736,847,493.98
  5. Step 5: Solve for x
    x = 298,736,847,493.98/617,954.20
  6. Step 6: Final answer
    x = 483,428.78

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1.5x scale

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.