Home / 879,579.60-1,317,814.20-780,046.80

Finding the Fourth Proportional to 879,579.60, 1,317,814.20 and 780,046.80

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Solution

The fourth proportional to 879,579.60, 1,317,814.20 and 780,046.80 is: 1,168,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,579.60 : 1,317,814.20 = 780,046.80 : x
  2. Step 2: Convert to fraction form
    879,579.60/1,317,814.20 = 780,046.80/x
  3. Step 3: Cross multiply
    879,579.60x = 1,317,814.20 × 780,046.80
  4. Step 4: Simplify right side
    879,579.60x = 1,027,956,749,704.56
  5. Step 5: Solve for x
    x = 1,027,956,749,704.56/879,579.60
  6. Step 6: Final answer
    x = 1,168,690.99

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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.