Home / 699,324.60-1,048,986.90-685,327.80

Finding the Fourth Proportional to 699,324.60, 1,048,986.90 and 685,327.80

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Solution

The fourth proportional to 699,324.60, 1,048,986.90 and 685,327.80 is: 1,027,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,324.60 : 1,048,986.90 = 685,327.80 : x
  2. Step 2: Convert to fraction form
    699,324.60/1,048,986.90 = 685,327.80/x
  3. Step 3: Cross multiply
    699,324.60x = 1,048,986.90 × 685,327.80
  4. Step 4: Simplify right side
    699,324.60x = 718,899,884,405.82
  5. Step 5: Solve for x
    x = 718,899,884,405.82/699,324.60
  6. Step 6: Final answer
    x = 1,027,991.70

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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.