Home / 1,217,523.21-1,826,365-318,986.97

Finding the Fourth Proportional to 1,217,523.21, 1,826,365 and 318,986.97

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Solution

The fourth proportional to 1,217,523.21, 1,826,365 and 318,986.97 is: 478,501.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,523.21 : 1,826,365 = 318,986.97 : x
  2. Step 2: Convert to fraction form
    1,217,523.21/1,826,365 = 318,986.97/x
  3. Step 3: Cross multiply
    1,217,523.21x = 1,826,365 × 318,986.97
  4. Step 4: Simplify right side
    1,217,523.21x = 582,586,637,464.05
  5. Step 5: Solve for x
    x = 582,586,637,464.05/1,217,523.21
  6. Step 6: Final answer
    x = 478,501.46

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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.