Home / 829,191.42-1,243,896.57-289,457.42

Finding the Fourth Proportional to 829,191.42, 1,243,896.57 and 289,457.42

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Solution

The fourth proportional to 829,191.42, 1,243,896.57 and 289,457.42 is: 434,224.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,191.42 : 1,243,896.57 = 289,457.42 : x
  2. Step 2: Convert to fraction form
    829,191.42/1,243,896.57 = 289,457.42/x
  3. Step 3: Cross multiply
    829,191.42x = 1,243,896.57 × 289,457.42
  4. Step 4: Simplify right side
    829,191.42x = 360,055,085,679.57
  5. Step 5: Solve for x
    x = 360,055,085,679.57/829,191.42
  6. Step 6: Final answer
    x = 434,224.33

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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.