Home / 684,815.40-1,027,368.90-211,548.60

Finding the Fourth Proportional to 684,815.40, 1,027,368.90 and 211,548.60

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Solution

The fourth proportional to 684,815.40, 1,027,368.90 and 211,548.60 is: 317,367.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,815.40 : 1,027,368.90 = 211,548.60 : x
  2. Step 2: Convert to fraction form
    684,815.40/1,027,368.90 = 211,548.60/x
  3. Step 3: Cross multiply
    684,815.40x = 1,027,368.90 × 211,548.60
  4. Step 4: Simplify right side
    684,815.40x = 217,338,452,478.54
  5. Step 5: Solve for x
    x = 217,338,452,478.54/684,815.40
  6. Step 6: Final answer
    x = 317,367.94

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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.