Home / 1,078,896.80-1,618,928.40-479,950.40

Finding the Fourth Proportional to 1,078,896.80, 1,618,928.40 and 479,950.40

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Solution

The fourth proportional to 1,078,896.80, 1,618,928.40 and 479,950.40 is: 720,185.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,896.80 : 1,618,928.40 = 479,950.40 : x
  2. Step 2: Convert to fraction form
    1,078,896.80/1,618,928.40 = 479,950.40/x
  3. Step 3: Cross multiply
    1,078,896.80x = 1,618,928.40 × 479,950.40
  4. Step 4: Simplify right side
    1,078,896.80x = 777,005,333,151.36
  5. Step 5: Solve for x
    x = 777,005,333,151.36/1,078,896.80
  6. Step 6: Final answer
    x = 720,185.04

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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.