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Finding the Fourth Proportional to 691,372.06, 954,097.86 and 385,468

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Solution

The fourth proportional to 691,372.06, 954,097.86 and 385,468 is: 531,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,372.06 : 954,097.86 = 385,468 : x
  2. Step 2: Convert to fraction form
    691,372.06/954,097.86 = 385,468/x
  3. Step 3: Cross multiply
    691,372.06x = 954,097.86 × 385,468
  4. Step 4: Simplify right side
    691,372.06x = 367,774,193,898.48
  5. Step 5: Solve for x
    x = 367,774,193,898.48/691,372.06
  6. Step 6: Final answer
    x = 531,948.30

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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.