Home / 4,142,728.09-6,213,945.19-1,263,978.64

Finding the Fourth Proportional to 4,142,728.09, 6,213,945.19 and 1,263,978.64

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Solution

The fourth proportional to 4,142,728.09, 6,213,945.19 and 1,263,978.64 is: 1,895,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142,728.09 : 6,213,945.19 = 1,263,978.64 : x
  2. Step 2: Convert to fraction form
    4,142,728.09/6,213,945.19 = 1,263,978.64/x
  3. Step 3: Cross multiply
    4,142,728.09x = 6,213,945.19 × 1,263,978.64
  4. Step 4: Simplify right side
    4,142,728.09x = 7,854,293,990,290.74
  5. Step 5: Solve for x
    x = 7,854,293,990,290.74/4,142,728.09
  6. Step 6: Final answer
    x = 1,895,923.13

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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.