Home / 409,728.04-565,464.67-306,182.43

Finding the Fourth Proportional to 409,728.04, 565,464.67 and 306,182.43

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Solution

The fourth proportional to 409,728.04, 565,464.67 and 306,182.43 is: 422,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,728.04 : 565,464.67 = 306,182.43 : x
  2. Step 2: Convert to fraction form
    409,728.04/565,464.67 = 306,182.43/x
  3. Step 3: Cross multiply
    409,728.04x = 565,464.67 × 306,182.43
  4. Step 4: Simplify right side
    409,728.04x = 173,135,346,937.90
  5. Step 5: Solve for x
    x = 173,135,346,937.90/409,728.04
  6. Step 6: Final answer
    x = 422,561.62

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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.