Home / 2,178,408.83-3,006,187.55-1,198,326.78

Finding the Fourth Proportional to 2,178,408.83, 3,006,187.55 and 1,198,326.78

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Solution

The fourth proportional to 2,178,408.83, 3,006,187.55 and 1,198,326.78 is: 1,653,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,408.83 : 3,006,187.55 = 1,198,326.78 : x
  2. Step 2: Convert to fraction form
    2,178,408.83/3,006,187.55 = 1,198,326.78/x
  3. Step 3: Cross multiply
    2,178,408.83x = 3,006,187.55 × 1,198,326.78
  4. Step 4: Simplify right side
    2,178,408.83x = 3,602,395,040,875.96
  5. Step 5: Solve for x
    x = 3,602,395,040,875.96/2,178,408.83
  6. Step 6: Final answer
    x = 1,653,681.80

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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.