Home / 1,100,879.96-1,651,740.26-427,434.12

Finding the Fourth Proportional to 1,100,879.96, 1,651,740.26 and 427,434.12

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Solution

The fourth proportional to 1,100,879.96, 1,651,740.26 and 427,434.12 is: 641,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,879.96 : 1,651,740.26 = 427,434.12 : x
  2. Step 2: Convert to fraction form
    1,100,879.96/1,651,740.26 = 427,434.12/x
  3. Step 3: Cross multiply
    1,100,879.96x = 1,651,740.26 × 427,434.12
  4. Step 4: Simplify right side
    1,100,879.96x = 706,010,142,364.50
  5. Step 5: Solve for x
    x = 706,010,142,364.50/1,100,879.96
  6. Step 6: Final answer
    x = 641,314.38

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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.