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Finding the Fourth Proportional to 873,321.73, 1,205,171.64 and 491,347.60

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Solution

The fourth proportional to 873,321.73, 1,205,171.64 and 491,347.60 is: 678,052.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,321.73 : 1,205,171.64 = 491,347.60 : x
  2. Step 2: Convert to fraction form
    873,321.73/1,205,171.64 = 491,347.60/x
  3. Step 3: Cross multiply
    873,321.73x = 1,205,171.64 × 491,347.60
  4. Step 4: Simplify right side
    873,321.73x = 592,158,197,757.55
  5. Step 5: Solve for x
    x = 592,158,197,757.55/873,321.73
  6. Step 6: Final answer
    x = 678,052.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.