Home / 1,618,640.40-2,427,960.60-862,813.20

Finding the Fourth Proportional to 1,618,640.40, 2,427,960.60 and 862,813.20

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Solution

The fourth proportional to 1,618,640.40, 2,427,960.60 and 862,813.20 is: 1,294,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,640.40 : 2,427,960.60 = 862,813.20 : x
  2. Step 2: Convert to fraction form
    1,618,640.40/2,427,960.60 = 862,813.20/x
  3. Step 3: Cross multiply
    1,618,640.40x = 2,427,960.60 × 862,813.20
  4. Step 4: Simplify right side
    1,618,640.40x = 2,094,876,454,759.92
  5. Step 5: Solve for x
    x = 2,094,876,454,759.92/1,618,640.40
  6. Step 6: Final answer
    x = 1,294,219.80

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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.