Home / 1,207,367.72-1,811,106.53-853,959.32

Finding the Fourth Proportional to 1,207,367.72, 1,811,106.53 and 853,959.32

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Solution

The fourth proportional to 1,207,367.72, 1,811,106.53 and 853,959.32 is: 1,280,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,367.72 : 1,811,106.53 = 853,959.32 : x
  2. Step 2: Convert to fraction form
    1,207,367.72/1,811,106.53 = 853,959.32/x
  3. Step 3: Cross multiply
    1,207,367.72x = 1,811,106.53 × 853,959.32
  4. Step 4: Simplify right side
    1,207,367.72x = 1,546,611,296,536.56
  5. Step 5: Solve for x
    x = 1,546,611,296,536.56/1,207,367.72
  6. Step 6: Final answer
    x = 1,280,977.84

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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.