Home / 3,005,103.74-4,509,135.42-1,407,390.86

Finding the Fourth Proportional to 3,005,103.74, 4,509,135.42 and 1,407,390.86

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Solution

The fourth proportional to 3,005,103.74, 4,509,135.42 and 1,407,390.86 is: 2,111,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005,103.74 : 4,509,135.42 = 1,407,390.86 : x
  2. Step 2: Convert to fraction form
    3,005,103.74/4,509,135.42 = 1,407,390.86/x
  3. Step 3: Cross multiply
    3,005,103.74x = 4,509,135.42 × 1,407,390.86
  4. Step 4: Simplify right side
    3,005,103.74x = 6,346,115,976,610.26
  5. Step 5: Solve for x
    x = 6,346,115,976,610.26/3,005,103.74
  6. Step 6: Final answer
    x = 2,111,779.33

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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.