Home / 886,912.10-1,330,562.55-287,771.30

Finding the Fourth Proportional to 886,912.10, 1,330,562.55 and 287,771.30

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Solution

The fourth proportional to 886,912.10, 1,330,562.55 and 287,771.30 is: 431,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,912.10 : 1,330,562.55 = 287,771.30 : x
  2. Step 2: Convert to fraction form
    886,912.10/1,330,562.55 = 287,771.30/x
  3. Step 3: Cross multiply
    886,912.10x = 1,330,562.55 × 287,771.30
  4. Step 4: Simplify right side
    886,912.10x = 382,897,714,744.82
  5. Step 5: Solve for x
    x = 382,897,714,744.82/886,912.10
  6. Step 6: Final answer
    x = 431,720.03

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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.