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Finding the Fourth Proportional to 578,659.60, 867,162.26 and 325,408.49

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Solution

The fourth proportional to 578,659.60, 867,162.26 and 325,408.49 is: 487,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,659.60 : 867,162.26 = 325,408.49 : x
  2. Step 2: Convert to fraction form
    578,659.60/867,162.26 = 325,408.49/x
  3. Step 3: Cross multiply
    578,659.60x = 867,162.26 × 325,408.49
  4. Step 4: Simplify right side
    578,659.60x = 282,181,959,510.73
  5. Step 5: Solve for x
    x = 282,181,959,510.73/578,659.60
  6. Step 6: Final answer
    x = 487,647.59

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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.