Home / 686,559.40-1,030,530.30-331,858.60

Finding the Fourth Proportional to 686,559.40, 1,030,530.30 and 331,858.60

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Solution

The fourth proportional to 686,559.40, 1,030,530.30 and 331,858.60 is: 498,122.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,559.40 : 1,030,530.30 = 331,858.60 : x
  2. Step 2: Convert to fraction form
    686,559.40/1,030,530.30 = 331,858.60/x
  3. Step 3: Cross multiply
    686,559.40x = 1,030,530.30 × 331,858.60
  4. Step 4: Simplify right side
    686,559.40x = 341,990,342,615.58
  5. Step 5: Solve for x
    x = 341,990,342,615.58/686,559.40
  6. Step 6: Final answer
    x = 498,122.00

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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.