Home / 2,721,629.64-4,077,778.86-1,921,479.24

Finding the Fourth Proportional to 2,721,629.64, 4,077,778.86 and 1,921,479.24

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Solution

The fourth proportional to 2,721,629.64, 4,077,778.86 and 1,921,479.24 is: 2,878,924.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721,629.64 : 4,077,778.86 = 1,921,479.24 : x
  2. Step 2: Convert to fraction form
    2,721,629.64/4,077,778.86 = 1,921,479.24/x
  3. Step 3: Cross multiply
    2,721,629.64x = 4,077,778.86 × 1,921,479.24
  4. Step 4: Simplify right side
    2,721,629.64x = 7,835,367,424,800.87
  5. Step 5: Solve for x
    x = 7,835,367,424,800.87/2,721,629.64
  6. Step 6: Final answer
    x = 2,878,924.93

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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.