Home / 879,061.20-1,318,591.80-318,022.80

Finding the Fourth Proportional to 879,061.20, 1,318,591.80 and 318,022.80

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Solution

The fourth proportional to 879,061.20, 1,318,591.80 and 318,022.80 is: 477,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,061.20 : 1,318,591.80 = 318,022.80 : x
  2. Step 2: Convert to fraction form
    879,061.20/1,318,591.80 = 318,022.80/x
  3. Step 3: Cross multiply
    879,061.20x = 1,318,591.80 × 318,022.80
  4. Step 4: Simplify right side
    879,061.20x = 419,342,256,293.04
  5. Step 5: Solve for x
    x = 419,342,256,293.04/879,061.20
  6. Step 6: Final answer
    x = 477,034.20

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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.