Home / 1,419,590.75-2,128,336.37-858,500.51

Finding the Fourth Proportional to 1,419,590.75, 2,128,336.37 and 858,500.51

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Solution

The fourth proportional to 1,419,590.75, 2,128,336.37 and 858,500.51 is: 1,287,115.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,590.75 : 2,128,336.37 = 858,500.51 : x
  2. Step 2: Convert to fraction form
    1,419,590.75/2,128,336.37 = 858,500.51/x
  3. Step 3: Cross multiply
    1,419,590.75x = 2,128,336.37 × 858,500.51
  4. Step 4: Simplify right side
    1,419,590.75x = 1,827,177,854,804.05
  5. Step 5: Solve for x
    x = 1,827,177,854,804.05/1,419,590.75
  6. Step 6: Final answer
    x = 1,287,115.92

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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.