Home / 867,722.41-1,302,423.21-418,759.33

Finding the Fourth Proportional to 867,722.41, 1,302,423.21 and 418,759.33

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Solution

The fourth proportional to 867,722.41, 1,302,423.21 and 418,759.33 is: 628,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,722.41 : 1,302,423.21 = 418,759.33 : x
  2. Step 2: Convert to fraction form
    867,722.41/1,302,423.21 = 418,759.33/x
  3. Step 3: Cross multiply
    867,722.41x = 1,302,423.21 × 418,759.33
  4. Step 4: Simplify right side
    867,722.41x = 545,401,870,796.05
  5. Step 5: Solve for x
    x = 545,401,870,796.05/867,722.41
  6. Step 6: Final answer
    x = 628,544.18

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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.