Home / 879,185.03-1,318,763.14-280,138.10

Finding the Fourth Proportional to 879,185.03, 1,318,763.14 and 280,138.10

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Solution

The fourth proportional to 879,185.03, 1,318,763.14 and 280,138.10 is: 420,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,185.03 : 1,318,763.14 = 280,138.10 : x
  2. Step 2: Convert to fraction form
    879,185.03/1,318,763.14 = 280,138.10/x
  3. Step 3: Cross multiply
    879,185.03x = 1,318,763.14 × 280,138.10
  4. Step 4: Simplify right side
    879,185.03x = 369,435,800,389.63
  5. Step 5: Solve for x
    x = 369,435,800,389.63/879,185.03
  6. Step 6: Final answer
    x = 420,202.56

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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.