Home / 3,178,512.59-4,386,316.43-1,728,208.02

Finding the Fourth Proportional to 3,178,512.59, 4,386,316.43 and 1,728,208.02

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Solution

The fourth proportional to 3,178,512.59, 4,386,316.43 and 1,728,208.02 is: 2,384,910.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,512.59 : 4,386,316.43 = 1,728,208.02 : x
  2. Step 2: Convert to fraction form
    3,178,512.59/4,386,316.43 = 1,728,208.02/x
  3. Step 3: Cross multiply
    3,178,512.59x = 4,386,316.43 × 1,728,208.02
  4. Step 4: Simplify right side
    3,178,512.59x = 7,580,467,223,942.73
  5. Step 5: Solve for x
    x = 7,580,467,223,942.73/3,178,512.59
  6. Step 6: Final answer
    x = 2,384,910.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.