Home / 1,038,682.80-1,557,732.60-328,928.40

Finding the Fourth Proportional to 1,038,682.80, 1,557,732.60 and 328,928.40

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Solution

The fourth proportional to 1,038,682.80, 1,557,732.60 and 328,928.40 is: 493,300.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,682.80 : 1,557,732.60 = 328,928.40 : x
  2. Step 2: Convert to fraction form
    1,038,682.80/1,557,732.60 = 328,928.40/x
  3. Step 3: Cross multiply
    1,038,682.80x = 1,557,732.60 × 328,928.40
  4. Step 4: Simplify right side
    1,038,682.80x = 512,382,491,745.84
  5. Step 5: Solve for x
    x = 512,382,491,745.84/1,038,682.80
  6. Step 6: Final answer
    x = 493,300.26

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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.