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Finding the Fourth Proportional to 618,232.60, 926,600.10 and 262,499.80

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Solution

The fourth proportional to 618,232.60, 926,600.10 and 262,499.80 is: 393,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,232.60 : 926,600.10 = 262,499.80 : x
  2. Step 2: Convert to fraction form
    618,232.60/926,600.10 = 262,499.80/x
  3. Step 3: Cross multiply
    618,232.60x = 926,600.10 × 262,499.80
  4. Step 4: Simplify right side
    618,232.60x = 243,232,340,929.98
  5. Step 5: Solve for x
    x = 243,232,340,929.98/618,232.60
  6. Step 6: Final answer
    x = 393,431.76

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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.