Home / 1,815,431.80-2,723,730.90-1,217,068.60

Finding the Fourth Proportional to 1,815,431.80, 2,723,730.90 and 1,217,068.60

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Solution

The fourth proportional to 1,815,431.80, 2,723,730.90 and 1,217,068.60 is: 1,825,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,431.80 : 2,723,730.90 = 1,217,068.60 : x
  2. Step 2: Convert to fraction form
    1,815,431.80/2,723,730.90 = 1,217,068.60/x
  3. Step 3: Cross multiply
    1,815,431.80x = 2,723,730.90 × 1,217,068.60
  4. Step 4: Simplify right side
    1,815,431.80x = 3,314,967,353,239.74
  5. Step 5: Solve for x
    x = 3,314,967,353,239.74/1,815,431.80
  6. Step 6: Final answer
    x = 1,825,993.88

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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.