Home / 854,036.54-1,178,687.60-491,453.00

Finding the Fourth Proportional to 854,036.54, 1,178,687.60 and 491,453.00

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Solution

The fourth proportional to 854,036.54, 1,178,687.60 and 491,453.00 is: 678,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,036.54 : 1,178,687.60 = 491,453.00 : x
  2. Step 2: Convert to fraction form
    854,036.54/1,178,687.60 = 491,453.00/x
  3. Step 3: Cross multiply
    854,036.54x = 1,178,687.60 × 491,453.00
  4. Step 4: Simplify right side
    854,036.54x = 579,269,548,732.10
  5. Step 5: Solve for x
    x = 579,269,548,732.10/854,036.54
  6. Step 6: Final answer
    x = 678,272.56

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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.