Home / 948,509.83-1,308,974.73-518,789.97

Finding the Fourth Proportional to 948,509.83, 1,308,974.73 and 518,789.97

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Solution

The fourth proportional to 948,509.83, 1,308,974.73 and 518,789.97 is: 715,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,509.83 : 1,308,974.73 = 518,789.97 : x
  2. Step 2: Convert to fraction form
    948,509.83/1,308,974.73 = 518,789.97/x
  3. Step 3: Cross multiply
    948,509.83x = 1,308,974.73 × 518,789.97
  4. Step 4: Simplify right side
    948,509.83x = 679,082,965,561.68
  5. Step 5: Solve for x
    x = 679,082,965,561.68/948,509.83
  6. Step 6: Final answer
    x = 715,947.21

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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.