Home / 721,879.82-1,082,445.93-384,829.94

Finding the Fourth Proportional to 721,879.82, 1,082,445.93 and 384,829.94

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Solution

The fourth proportional to 721,879.82, 1,082,445.93 and 384,829.94 is: 577,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,879.82 : 1,082,445.93 = 384,829.94 : x
  2. Step 2: Convert to fraction form
    721,879.82/1,082,445.93 = 384,829.94/x
  3. Step 3: Cross multiply
    721,879.82x = 1,082,445.93 × 384,829.94
  4. Step 4: Simplify right side
    721,879.82x = 416,557,596,882.92
  5. Step 5: Solve for x
    x = 416,557,596,882.92/721,879.82
  6. Step 6: Final answer
    x = 577,045.64

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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.