Home / 879,242.64-1,318,849.52-280,195.80

Finding the Fourth Proportional to 879,242.64, 1,318,849.52 and 280,195.80

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Solution

The fourth proportional to 879,242.64, 1,318,849.52 and 280,195.80 is: 420,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,242.64 : 1,318,849.52 = 280,195.80 : x
  2. Step 2: Convert to fraction form
    879,242.64/1,318,849.52 = 280,195.80/x
  3. Step 3: Cross multiply
    879,242.64x = 1,318,849.52 × 280,195.80
  4. Step 4: Simplify right side
    879,242.64x = 369,536,096,336.02
  5. Step 5: Solve for x
    x = 369,536,096,336.02/879,242.64
  6. Step 6: Final answer
    x = 420,289.10

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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.