Home / 1,212,071.37-1,672,661.91-728,913.25

Finding the Fourth Proportional to 1,212,071.37, 1,672,661.91 and 728,913.25

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Solution

The fourth proportional to 1,212,071.37, 1,672,661.91 and 728,913.25 is: 1,005,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,071.37 : 1,672,661.91 = 728,913.25 : x
  2. Step 2: Convert to fraction form
    1,212,071.37/1,672,661.91 = 728,913.25/x
  3. Step 3: Cross multiply
    1,212,071.37x = 1,672,661.91 × 728,913.25
  4. Step 4: Simplify right side
    1,212,071.37x = 1,219,225,428,969.31
  5. Step 5: Solve for x
    x = 1,219,225,428,969.31/1,212,071.37
  6. Step 6: Final answer
    x = 1,005,902.34

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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.