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Finding the Fourth Proportional to 1,077,794.80, 1,614,942.60 and 677,719.60

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Solution

The fourth proportional to 1,077,794.80, 1,614,942.60 and 677,719.60 is: 1,015,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,794.80 : 1,614,942.60 = 677,719.60 : x
  2. Step 2: Convert to fraction form
    1,077,794.80/1,614,942.60 = 677,719.60/x
  3. Step 3: Cross multiply
    1,077,794.80x = 1,614,942.60 × 677,719.60
  4. Step 4: Simplify right side
    1,077,794.80x = 1,094,478,252,894.96
  5. Step 5: Solve for x
    x = 1,094,478,252,894.96/1,077,794.80
  6. Step 6: Final answer
    x = 1,015,479.25

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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.