Home / 1,078,469.80-1,617,704.70-779,871.40

Finding the Fourth Proportional to 1,078,469.80, 1,617,704.70 and 779,871.40

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Solution

The fourth proportional to 1,078,469.80, 1,617,704.70 and 779,871.40 is: 1,169,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,469.80 : 1,617,704.70 = 779,871.40 : x
  2. Step 2: Convert to fraction form
    1,078,469.80/1,617,704.70 = 779,871.40/x
  3. Step 3: Cross multiply
    1,078,469.80x = 1,617,704.70 × 779,871.40
  4. Step 4: Simplify right side
    1,078,469.80x = 1,261,601,629,175.58
  5. Step 5: Solve for x
    x = 1,261,601,629,175.58/1,078,469.80
  6. Step 6: Final answer
    x = 1,169,807.10

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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.