Home / 1,200,821.55-1,801,222.29-490,351.29

Finding the Fourth Proportional to 1,200,821.55, 1,801,222.29 and 490,351.29

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Solution

The fourth proportional to 1,200,821.55, 1,801,222.29 and 490,351.29 is: 735,522.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,821.55 : 1,801,222.29 = 490,351.29 : x
  2. Step 2: Convert to fraction form
    1,200,821.55/1,801,222.29 = 490,351.29/x
  3. Step 3: Cross multiply
    1,200,821.55x = 1,801,222.29 × 490,351.29
  4. Step 4: Simplify right side
    1,200,821.55x = 883,231,673,478.25
  5. Step 5: Solve for x
    x = 883,231,673,478.25/1,200,821.55
  6. Step 6: Final answer
    x = 735,522.84

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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.