Home / 388,939.36-583,409.04-122,726.83

Finding the Fourth Proportional to 388,939.36, 583,409.04 and 122,726.83

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Solution

The fourth proportional to 388,939.36, 583,409.04 and 122,726.83 is: 184,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,939.36 : 583,409.04 = 122,726.83 : x
  2. Step 2: Convert to fraction form
    388,939.36/583,409.04 = 122,726.83/x
  3. Step 3: Cross multiply
    388,939.36x = 583,409.04 × 122,726.83
  4. Step 4: Simplify right side
    388,939.36x = 71,599,942,072.54
  5. Step 5: Solve for x
    x = 71,599,942,072.54/388,939.36
  6. Step 6: Final answer
    x = 184,090.25

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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.