Home / 700,861.20-1,051,291.80-257,571.60

Finding the Fourth Proportional to 700,861.20, 1,051,291.80 and 257,571.60

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Solution

The fourth proportional to 700,861.20, 1,051,291.80 and 257,571.60 is: 386,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,861.20 : 1,051,291.80 = 257,571.60 : x
  2. Step 2: Convert to fraction form
    700,861.20/1,051,291.80 = 257,571.60/x
  3. Step 3: Cross multiply
    700,861.20x = 1,051,291.80 × 257,571.60
  4. Step 4: Simplify right side
    700,861.20x = 270,782,910,992.88
  5. Step 5: Solve for x
    x = 270,782,910,992.88/700,861.20
  6. Step 6: Final answer
    x = 386,357.40

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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.