Home / 721,878.31-1,082,443.68-384,828.44

Finding the Fourth Proportional to 721,878.31, 1,082,443.68 and 384,828.44

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Solution

The fourth proportional to 721,878.31, 1,082,443.68 and 384,828.44 is: 577,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,878.31 : 1,082,443.68 = 384,828.44 : x
  2. Step 2: Convert to fraction form
    721,878.31/1,082,443.68 = 384,828.44/x
  3. Step 3: Cross multiply
    721,878.31x = 1,082,443.68 × 384,828.44
  4. Step 4: Simplify right side
    721,878.31x = 416,555,107,350.04
  5. Step 5: Solve for x
    x = 416,555,107,350.04/721,878.31
  6. Step 6: Final answer
    x = 577,043.39

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1.5x scale

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.