Home / 810,164.86-1,117,993.46-465,974.80

Finding the Fourth Proportional to 810,164.86, 1,117,993.46 and 465,974.80

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Solution

The fourth proportional to 810,164.86, 1,117,993.46 and 465,974.80 is: 643,025.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,164.86 : 1,117,993.46 = 465,974.80 : x
  2. Step 2: Convert to fraction form
    810,164.86/1,117,993.46 = 465,974.80/x
  3. Step 3: Cross multiply
    810,164.86x = 1,117,993.46 × 465,974.80
  4. Step 4: Simplify right side
    810,164.86x = 520,956,778,924.81
  5. Step 5: Solve for x
    x = 520,956,778,924.81/810,164.86
  6. Step 6: Final answer
    x = 643,025.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.