Home / 803,430.36-1,205,153.82-204,391.80

Finding the Fourth Proportional to 803,430.36, 1,205,153.82 and 204,391.80

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Solution

The fourth proportional to 803,430.36, 1,205,153.82 and 204,391.80 is: 306,589.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,430.36 : 1,205,153.82 = 204,391.80 : x
  2. Step 2: Convert to fraction form
    803,430.36/1,205,153.82 = 204,391.80/x
  3. Step 3: Cross multiply
    803,430.36x = 1,205,153.82 × 204,391.80
  4. Step 4: Simplify right side
    803,430.36x = 246,323,558,546.68
  5. Step 5: Solve for x
    x = 246,323,558,546.68/803,430.36
  6. Step 6: Final answer
    x = 306,589.81

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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.