Home / 1,121,744.31-1,682,838.27-411,778.50

Finding the Fourth Proportional to 1,121,744.31, 1,682,838.27 and 411,778.50

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Solution

The fourth proportional to 1,121,744.31, 1,682,838.27 and 411,778.50 is: 617,749.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,744.31 : 1,682,838.27 = 411,778.50 : x
  2. Step 2: Convert to fraction form
    1,121,744.31/1,682,838.27 = 411,778.50/x
  3. Step 3: Cross multiply
    1,121,744.31x = 1,682,838.27 × 411,778.50
  4. Step 4: Simplify right side
    1,121,744.31x = 692,956,618,563.20
  5. Step 5: Solve for x
    x = 692,956,618,563.20/1,121,744.31
  6. Step 6: Final answer
    x = 617,749.17

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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.