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Finding the Fourth Proportional to 552,812.94, 762,873.03 and 311,095.44

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Solution

The fourth proportional to 552,812.94, 762,873.03 and 311,095.44 is: 429,306.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,812.94 : 762,873.03 = 311,095.44 : x
  2. Step 2: Convert to fraction form
    552,812.94/762,873.03 = 311,095.44/x
  3. Step 3: Cross multiply
    552,812.94x = 762,873.03 × 311,095.44
  4. Step 4: Simplify right side
    552,812.94x = 237,326,320,931.98
  5. Step 5: Solve for x
    x = 237,326,320,931.98/552,812.94
  6. Step 6: Final answer
    x = 429,306.74

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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.