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Finding the Fourth Proportional to 614,745.40, 922,247.70 and 259,576.60

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Solution

The fourth proportional to 614,745.40, 922,247.70 and 259,576.60 is: 389,419.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,745.40 : 922,247.70 = 259,576.60 : x
  2. Step 2: Convert to fraction form
    614,745.40/922,247.70 = 259,576.60/x
  3. Step 3: Cross multiply
    614,745.40x = 922,247.70 × 259,576.60
  4. Step 4: Simplify right side
    614,745.40x = 239,393,922,323.82
  5. Step 5: Solve for x
    x = 239,393,922,323.82/614,745.40
  6. Step 6: Final answer
    x = 389,419.62

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1.5x scale

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.