Home / 859,428.60-1,288,268.10-504,259.80

Finding the Fourth Proportional to 859,428.60, 1,288,268.10 and 504,259.80

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Solution

The fourth proportional to 859,428.60, 1,288,268.10 and 504,259.80 is: 755,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,428.60 : 1,288,268.10 = 504,259.80 : x
  2. Step 2: Convert to fraction form
    859,428.60/1,288,268.10 = 504,259.80/x
  3. Step 3: Cross multiply
    859,428.60x = 1,288,268.10 × 504,259.80
  4. Step 4: Simplify right side
    859,428.60x = 649,621,814,452.38
  5. Step 5: Solve for x
    x = 649,621,814,452.38/859,428.60
  6. Step 6: Final answer
    x = 755,876.42

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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.