Home / 1,098,005.10-1,647,007.65-388,104.90

Finding the Fourth Proportional to 1,098,005.10, 1,647,007.65 and 388,104.90

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Solution

The fourth proportional to 1,098,005.10, 1,647,007.65 and 388,104.90 is: 582,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,005.10 : 1,647,007.65 = 388,104.90 : x
  2. Step 2: Convert to fraction form
    1,098,005.10/1,647,007.65 = 388,104.90/x
  3. Step 3: Cross multiply
    1,098,005.10x = 1,647,007.65 × 388,104.90
  4. Step 4: Simplify right side
    1,098,005.10x = 639,211,739,302.49
  5. Step 5: Solve for x
    x = 639,211,739,302.49/1,098,005.10
  6. Step 6: Final answer
    x = 582,157.35

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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.