Home / 1,311,962.39-1,968,219.75-743,615.81

Finding the Fourth Proportional to 1,311,962.39, 1,968,219.75 and 743,615.81

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Solution

The fourth proportional to 1,311,962.39, 1,968,219.75 and 743,615.81 is: 1,115,580.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,962.39 : 1,968,219.75 = 743,615.81 : x
  2. Step 2: Convert to fraction form
    1,311,962.39/1,968,219.75 = 743,615.81/x
  3. Step 3: Cross multiply
    1,311,962.39x = 1,968,219.75 × 743,615.81
  4. Step 4: Simplify right side
    1,311,962.39x = 1,463,599,323,654.25
  5. Step 5: Solve for x
    x = 1,463,599,323,654.25/1,311,962.39
  6. Step 6: Final answer
    x = 1,115,580.24

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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.