Home / 821,639.40-1,232,459.10-683,399.40

Finding the Fourth Proportional to 821,639.40, 1,232,459.10 and 683,399.40

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Solution

The fourth proportional to 821,639.40, 1,232,459.10 and 683,399.40 is: 1,025,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,639.40 : 1,232,459.10 = 683,399.40 : x
  2. Step 2: Convert to fraction form
    821,639.40/1,232,459.10 = 683,399.40/x
  3. Step 3: Cross multiply
    821,639.40x = 1,232,459.10 × 683,399.40
  4. Step 4: Simplify right side
    821,639.40x = 842,261,809,464.54
  5. Step 5: Solve for x
    x = 842,261,809,464.54/821,639.40
  6. Step 6: Final answer
    x = 1,025,099.10

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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.