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Finding the Fourth Proportional to 652,216.40, 978,470.40 and 252,821.60

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Solution

The fourth proportional to 652,216.40, 978,470.40 and 252,821.60 is: 379,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,216.40 : 978,470.40 = 252,821.60 : x
  2. Step 2: Convert to fraction form
    652,216.40/978,470.40 = 252,821.60/x
  3. Step 3: Cross multiply
    652,216.40x = 978,470.40 × 252,821.60
  4. Step 4: Simplify right side
    652,216.40x = 247,378,452,080.64
  5. Step 5: Solve for x
    x = 247,378,452,080.64/652,216.40
  6. Step 6: Final answer
    x = 379,288.92

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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.