Home / 638,348.52-957,887.82-322,828.68

Finding the Fourth Proportional to 638,348.52, 957,887.82 and 322,828.68

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Solution

The fourth proportional to 638,348.52, 957,887.82 and 322,828.68 is: 484,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,348.52 : 957,887.82 = 322,828.68 : x
  2. Step 2: Convert to fraction form
    638,348.52/957,887.82 = 322,828.68/x
  3. Step 3: Cross multiply
    638,348.52x = 957,887.82 × 322,828.68
  4. Step 4: Simplify right side
    638,348.52x = 309,233,660,518.68
  5. Step 5: Solve for x
    x = 309,233,660,518.68/638,348.52
  6. Step 6: Final answer
    x = 484,427.63

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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.