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Finding the Fourth Proportional to 666,026.37, 998,956.44 and 392,629.50

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Solution

The fourth proportional to 666,026.37, 998,956.44 and 392,629.50 is: 588,895.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,026.37 : 998,956.44 = 392,629.50 : x
  2. Step 2: Convert to fraction form
    666,026.37/998,956.44 = 392,629.50/x
  3. Step 3: Cross multiply
    666,026.37x = 998,956.44 × 392,629.50
  4. Step 4: Simplify right side
    666,026.37x = 392,219,767,558.98
  5. Step 5: Solve for x
    x = 392,219,767,558.98/666,026.37
  6. Step 6: Final answer
    x = 588,895.25

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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.