Home / 1,861,920.90-2,793,209.40-664,538.40

Finding the Fourth Proportional to 1,861,920.90, 2,793,209.40 and 664,538.40

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Solution

The fourth proportional to 1,861,920.90, 2,793,209.40 and 664,538.40 is: 996,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,920.90 : 2,793,209.40 = 664,538.40 : x
  2. Step 2: Convert to fraction form
    1,861,920.90/2,793,209.40 = 664,538.40/x
  3. Step 3: Cross multiply
    1,861,920.90x = 2,793,209.40 × 664,538.40
  4. Step 4: Simplify right side
    1,861,920.90x = 1,856,194,905,540.96
  5. Step 5: Solve for x
    x = 1,856,194,905,540.96/1,861,920.90
  6. Step 6: Final answer
    x = 996,924.68

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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.