Home / 1,427,583.18-1,970,074.47-783,007.86

Finding the Fourth Proportional to 1,427,583.18, 1,970,074.47 and 783,007.86

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Solution

The fourth proportional to 1,427,583.18, 1,970,074.47 and 783,007.86 is: 1,080,556.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,583.18 : 1,970,074.47 = 783,007.86 : x
  2. Step 2: Convert to fraction form
    1,427,583.18/1,970,074.47 = 783,007.86/x
  3. Step 3: Cross multiply
    1,427,583.18x = 1,970,074.47 × 783,007.86
  4. Step 4: Simplify right side
    1,427,583.18x = 1,542,583,794,795.33
  5. Step 5: Solve for x
    x = 1,542,583,794,795.33/1,427,583.18
  6. Step 6: Final answer
    x = 1,080,556.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.