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Finding the Fourth Proportional to 491,726, 738,211.56 and 301,719.60

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Solution

The fourth proportional to 491,726, 738,211.56 and 301,719.60 is: 452,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,726 : 738,211.56 = 301,719.60 : x
  2. Step 2: Convert to fraction form
    491,726/738,211.56 = 301,719.60/x
  3. Step 3: Cross multiply
    491,726x = 738,211.56 × 301,719.60
  4. Step 4: Simplify right side
    491,726x = 222,732,896,598.58
  5. Step 5: Solve for x
    x = 222,732,896,598.58/491,726
  6. Step 6: Final answer
    x = 452,961.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.