Home / 409,836.80-614,099.10-259,808.60

Finding the Fourth Proportional to 409,836.80, 614,099.10 and 259,808.60

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Solution

The fourth proportional to 409,836.80, 614,099.10 and 259,808.60 is: 389,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,836.80 : 614,099.10 = 259,808.60 : x
  2. Step 2: Convert to fraction form
    409,836.80/614,099.10 = 259,808.60/x
  3. Step 3: Cross multiply
    409,836.80x = 614,099.10 × 259,808.60
  4. Step 4: Simplify right side
    409,836.80x = 159,548,227,432.26
  5. Step 5: Solve for x
    x = 159,548,227,432.26/409,836.80
  6. Step 6: Final answer
    x = 389,296.98

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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.