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Finding the Fourth Proportional to 552,670.43, 762,692.18 and 310,953.47

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Solution

The fourth proportional to 552,670.43, 762,692.18 and 310,953.47 is: 429,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,670.43 : 762,692.18 = 310,953.47 : x
  2. Step 2: Convert to fraction form
    552,670.43/762,692.18 = 310,953.47/x
  3. Step 3: Cross multiply
    552,670.43x = 762,692.18 × 310,953.47
  4. Step 4: Simplify right side
    552,670.43x = 237,161,774,544.64
  5. Step 5: Solve for x
    x = 237,161,774,544.64/552,670.43
  6. Step 6: Final answer
    x = 429,119.71

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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.