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Finding the Fourth Proportional to 691,371.06, 954,096.48 and 385,467

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Solution

The fourth proportional to 691,371.06, 954,096.48 and 385,467 is: 531,946.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,371.06 : 954,096.48 = 385,467 : x
  2. Step 2: Convert to fraction form
    691,371.06/954,096.48 = 385,467/x
  3. Step 3: Cross multiply
    691,371.06x = 954,096.48 × 385,467
  4. Step 4: Simplify right side
    691,371.06x = 367,772,707,856.16
  5. Step 5: Solve for x
    x = 367,772,707,856.16/691,371.06
  6. Step 6: Final answer
    x = 531,946.92

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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.