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Finding the Fourth Proportional to 652,817.36, 978,511.80 and 279,062.48

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Solution

The fourth proportional to 652,817.36, 978,511.80 and 279,062.48 is: 418,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,817.36 : 978,511.80 = 279,062.48 : x
  2. Step 2: Convert to fraction form
    652,817.36/978,511.80 = 279,062.48/x
  3. Step 3: Cross multiply
    652,817.36x = 978,511.80 × 279,062.48
  4. Step 4: Simplify right side
    652,817.36x = 273,065,929,617.26
  5. Step 5: Solve for x
    x = 273,065,929,617.26/652,817.36
  6. Step 6: Final answer
    x = 418,288.40

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