Home / 728,068.05-1,091,810.48-254,509.65

Finding the Fourth Proportional to 728,068.05, 1,091,810.48 and 254,509.65

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Solution

The fourth proportional to 728,068.05, 1,091,810.48 and 254,509.65 is: 381,662.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,068.05 : 1,091,810.48 = 254,509.65 : x
  2. Step 2: Convert to fraction form
    728,068.05/1,091,810.48 = 254,509.65/x
  3. Step 3: Cross multiply
    728,068.05x = 1,091,810.48 × 254,509.65
  4. Step 4: Simplify right side
    728,068.05x = 277,876,301,858.58
  5. Step 5: Solve for x
    x = 277,876,301,858.58/728,068.05
  6. Step 6: Final answer
    x = 381,662.54

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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.