Home / 389,014.06-583,521.09-122,961.43

Finding the Fourth Proportional to 389,014.06, 583,521.09 and 122,961.43

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Solution

The fourth proportional to 389,014.06, 583,521.09 and 122,961.43 is: 184,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,014.06 : 583,521.09 = 122,961.43 : x
  2. Step 2: Convert to fraction form
    389,014.06/583,521.09 = 122,961.43/x
  3. Step 3: Cross multiply
    389,014.06x = 583,521.09 × 122,961.43
  4. Step 4: Simplify right side
    389,014.06x = 71,750,587,661.56
  5. Step 5: Solve for x
    x = 71,750,587,661.56/389,014.06
  6. Step 6: Final answer
    x = 184,442.15

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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.