Home / 879,208.35-1,318,798.22-280,161.42

Finding the Fourth Proportional to 879,208.35, 1,318,798.22 and 280,161.42

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Solution

The fourth proportional to 879,208.35, 1,318,798.22 and 280,161.42 is: 420,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,208.35 : 1,318,798.22 = 280,161.42 : x
  2. Step 2: Convert to fraction form
    879,208.35/1,318,798.22 = 280,161.42/x
  3. Step 3: Cross multiply
    879,208.35x = 1,318,798.22 × 280,161.42
  4. Step 4: Simplify right side
    879,208.35x = 369,476,380,607.87
  5. Step 5: Solve for x
    x = 369,476,380,607.87/879,208.35
  6. Step 6: Final answer
    x = 420,237.57

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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.