Home / 752,396.21-1,128,631.22-303,056.40

Finding the Fourth Proportional to 752,396.21, 1,128,631.22 and 303,056.40

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Solution

The fourth proportional to 752,396.21, 1,128,631.22 and 303,056.40 is: 454,599.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,396.21 : 1,128,631.22 = 303,056.40 : x
  2. Step 2: Convert to fraction form
    752,396.21/1,128,631.22 = 303,056.40/x
  3. Step 3: Cross multiply
    752,396.21x = 1,128,631.22 × 303,056.40
  4. Step 4: Simplify right side
    752,396.21x = 342,038,918,314.36
  5. Step 5: Solve for x
    x = 342,038,918,314.36/752,396.21
  6. Step 6: Final answer
    x = 454,599.47

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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.