Home / 862,824.40-1,294,236.60-442,920.40

Finding the Fourth Proportional to 862,824.40, 1,294,236.60 and 442,920.40

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Solution

The fourth proportional to 862,824.40, 1,294,236.60 and 442,920.40 is: 664,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,824.40 : 1,294,236.60 = 442,920.40 : x
  2. Step 2: Convert to fraction form
    862,824.40/1,294,236.60 = 442,920.40/x
  3. Step 3: Cross multiply
    862,824.40x = 1,294,236.60 × 442,920.40
  4. Step 4: Simplify right side
    862,824.40x = 573,243,792,566.64
  5. Step 5: Solve for x
    x = 573,243,792,566.64/862,824.40
  6. Step 6: Final answer
    x = 664,380.60

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1.5x scale

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.