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Finding the Fourth Proportional to 2,764,941.60, 4,147,412.40 and 871,874.40

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Solution

The fourth proportional to 2,764,941.60, 4,147,412.40 and 871,874.40 is: 1,307,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764,941.60 : 4,147,412.40 = 871,874.40 : x
  2. Step 2: Convert to fraction form
    2,764,941.60/4,147,412.40 = 871,874.40/x
  3. Step 3: Cross multiply
    2,764,941.60x = 4,147,412.40 × 871,874.40
  4. Step 4: Simplify right side
    2,764,941.60x = 3,616,022,697,802.56
  5. Step 5: Solve for x
    x = 3,616,022,697,802.56/2,764,941.60
  6. Step 6: Final answer
    x = 1,307,811.60

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Why These Related Problems?

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