Home / 725,866.88-1,089,021.44-371,129.92

Finding the Fourth Proportional to 725,866.88, 1,089,021.44 and 371,129.92

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Solution

The fourth proportional to 725,866.88, 1,089,021.44 and 371,129.92 is: 556,807.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,866.88 : 1,089,021.44 = 371,129.92 : x
  2. Step 2: Convert to fraction form
    725,866.88/1,089,021.44 = 371,129.92/x
  3. Step 3: Cross multiply
    725,866.88x = 1,089,021.44 × 371,129.92
  4. Step 4: Simplify right side
    725,866.88x = 404,168,439,905.49
  5. Step 5: Solve for x
    x = 404,168,439,905.49/725,866.88
  6. Step 6: Final answer
    x = 556,807.94

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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.