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Finding the Fourth Proportional to 552,589.84, 762,530.36 and 310,824.28

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Solution

The fourth proportional to 552,589.84, 762,530.36 and 310,824.28 is: 428,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,589.84 : 762,530.36 = 310,824.28 : x
  2. Step 2: Convert to fraction form
    552,589.84/762,530.36 = 310,824.28/x
  3. Step 3: Cross multiply
    552,589.84x = 762,530.36 × 310,824.28
  4. Step 4: Simplify right side
    552,589.84x = 237,012,950,125.14
  5. Step 5: Solve for x
    x = 237,012,950,125.14/552,589.84
  6. Step 6: Final answer
    x = 428,912.97

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1.5x scale

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.