Home / 2,788,840-4,185,029.64-1,191,415.12

Finding the Fourth Proportional to 2,788,840, 4,185,029.64 and 1,191,415.12

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Solution

The fourth proportional to 2,788,840, 4,185,029.64 and 1,191,415.12 is: 1,787,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,840 : 4,185,029.64 = 1,191,415.12 : x
  2. Step 2: Convert to fraction form
    2,788,840/4,185,029.64 = 1,191,415.12/x
  3. Step 3: Cross multiply
    2,788,840x = 4,185,029.64 × 1,191,415.12
  4. Step 4: Simplify right side
    2,788,840x = 4,986,107,590,744.16
  5. Step 5: Solve for x
    x = 4,986,107,590,744.16/2,788,840
  6. Step 6: Final answer
    x = 1,787,878.68

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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.