Home / 721,879.43-1,082,445.37-384,829.55

Finding the Fourth Proportional to 721,879.43, 1,082,445.37 and 384,829.55

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Solution

The fourth proportional to 721,879.43, 1,082,445.37 and 384,829.55 is: 577,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,879.43 : 1,082,445.37 = 384,829.55 : x
  2. Step 2: Convert to fraction form
    721,879.43/1,082,445.37 = 384,829.55/x
  3. Step 3: Cross multiply
    721,879.43x = 1,082,445.37 × 384,829.55
  4. Step 4: Simplify right side
    721,879.43x = 416,556,970,574.97
  5. Step 5: Solve for x
    x = 416,556,970,574.97/721,879.43
  6. Step 6: Final answer
    x = 577,045.08

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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.