Home / 886,285.89-1,329,149.97-287,108.03

Finding the Fourth Proportional to 886,285.89, 1,329,149.97 and 287,108.03

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Solution

The fourth proportional to 886,285.89, 1,329,149.97 and 287,108.03 is: 430,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,285.89 : 1,329,149.97 = 287,108.03 : x
  2. Step 2: Convert to fraction form
    886,285.89/1,329,149.97 = 287,108.03/x
  3. Step 3: Cross multiply
    886,285.89x = 1,329,149.97 × 287,108.03
  4. Step 4: Simplify right side
    886,285.89x = 381,609,622,815.51
  5. Step 5: Solve for x
    x = 381,609,622,815.51/886,285.89
  6. Step 6: Final answer
    x = 430,571.70

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1.5x scale

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.