Home / 1,212,773.40-1,817,629.20-613,899.90

Finding the Fourth Proportional to 1,212,773.40, 1,817,629.20 and 613,899.90

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Solution

The fourth proportional to 1,212,773.40, 1,817,629.20 and 613,899.90 is: 920,074.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,773.40 : 1,817,629.20 = 613,899.90 : x
  2. Step 2: Convert to fraction form
    1,212,773.40/1,817,629.20 = 613,899.90/x
  3. Step 3: Cross multiply
    1,212,773.40x = 1,817,629.20 × 613,899.90
  4. Step 4: Simplify right side
    1,212,773.40x = 1,115,842,384,117.08
  5. Step 5: Solve for x
    x = 1,115,842,384,117.08/1,212,773.40
  6. Step 6: Final answer
    x = 920,074.92

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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.