Home / 1,210,855.85-1,815,394.38-580,212.53

Finding the Fourth Proportional to 1,210,855.85, 1,815,394.38 and 580,212.53

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Solution

The fourth proportional to 1,210,855.85, 1,815,394.38 and 580,212.53 is: 869,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,855.85 : 1,815,394.38 = 580,212.53 : x
  2. Step 2: Convert to fraction form
    1,210,855.85/1,815,394.38 = 580,212.53/x
  3. Step 3: Cross multiply
    1,210,855.85x = 1,815,394.38 × 580,212.53
  4. Step 4: Simplify right side
    1,210,855.85x = 1,053,314,566,167.58
  5. Step 5: Solve for x
    x = 1,053,314,566,167.58/1,210,855.85
  6. Step 6: Final answer
    x = 869,892.62

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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.