Home / 1,393,782.42-2,090,730.33-663,930.45

Finding the Fourth Proportional to 1,393,782.42, 2,090,730.33 and 663,930.45

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Solution

The fourth proportional to 1,393,782.42, 2,090,730.33 and 663,930.45 is: 995,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,782.42 : 2,090,730.33 = 663,930.45 : x
  2. Step 2: Convert to fraction form
    1,393,782.42/2,090,730.33 = 663,930.45/x
  3. Step 3: Cross multiply
    1,393,782.42x = 2,090,730.33 × 663,930.45
  4. Step 4: Simplify right side
    1,393,782.42x = 1,388,099,528,825.55
  5. Step 5: Solve for x
    x = 1,388,099,528,825.55/1,393,782.42
  6. Step 6: Final answer
    x = 995,922.68

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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.