Home / 1,301,828.75-1,796,511.86-728,878.49

Finding the Fourth Proportional to 1,301,828.75, 1,796,511.86 and 728,878.49

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Solution

The fourth proportional to 1,301,828.75, 1,796,511.86 and 728,878.49 is: 1,005,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,828.75 : 1,796,511.86 = 728,878.49 : x
  2. Step 2: Convert to fraction form
    1,301,828.75/1,796,511.86 = 728,878.49/x
  3. Step 3: Cross multiply
    1,301,828.75x = 1,796,511.86 × 728,878.49
  4. Step 4: Simplify right side
    1,301,828.75x = 1,309,438,839,156.94
  5. Step 5: Solve for x
    x = 1,309,438,839,156.94/1,301,828.75
  6. Step 6: Final answer
    x = 1,005,845.70

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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.