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Finding the Fourth Proportional to 471,216.40, 706,824.60 and 440,112.40

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Solution

The fourth proportional to 471,216.40, 706,824.60 and 440,112.40 is: 660,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,216.40 : 706,824.60 = 440,112.40 : x
  2. Step 2: Convert to fraction form
    471,216.40/706,824.60 = 440,112.40/x
  3. Step 3: Cross multiply
    471,216.40x = 706,824.60 × 440,112.40
  4. Step 4: Simplify right side
    471,216.40x = 311,082,271,085.04
  5. Step 5: Solve for x
    x = 311,082,271,085.04/471,216.40
  6. Step 6: Final answer
    x = 660,168.60

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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.