Home / 879,191.18-1,318,772.30-280,144.24

Finding the Fourth Proportional to 879,191.18, 1,318,772.30 and 280,144.24

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Solution

The fourth proportional to 879,191.18, 1,318,772.30 and 280,144.24 is: 420,211.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,191.18 : 1,318,772.30 = 280,144.24 : x
  2. Step 2: Convert to fraction form
    879,191.18/1,318,772.30 = 280,144.24/x
  3. Step 3: Cross multiply
    879,191.18x = 1,318,772.30 × 280,144.24
  4. Step 4: Simplify right side
    879,191.18x = 369,446,463,716.55
  5. Step 5: Solve for x
    x = 369,446,463,716.55/879,191.18
  6. Step 6: Final answer
    x = 420,211.75

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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.