Home / 909,983.40-1,365,812.88-461,016.60

Finding the Fourth Proportional to 909,983.40, 1,365,812.88 and 461,016.60

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Solution

The fourth proportional to 909,983.40, 1,365,812.88 and 461,016.60 is: 691,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,983.40 : 1,365,812.88 = 461,016.60 : x
  2. Step 2: Convert to fraction form
    909,983.40/1,365,812.88 = 461,016.60/x
  3. Step 3: Cross multiply
    909,983.40x = 1,365,812.88 × 461,016.60
  4. Step 4: Simplify right side
    909,983.40x = 629,662,410,173.81
  5. Step 5: Solve for x
    x = 629,662,410,173.81/909,983.40
  6. Step 6: Final answer
    x = 691,949.34

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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.