Home / 1,313,984.87-1,968,420.93-863,336.51

Finding the Fourth Proportional to 1,313,984.87, 1,968,420.93 and 863,336.51

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Solution

The fourth proportional to 1,313,984.87, 1,968,420.93 and 863,336.51 is: 1,293,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,984.87 : 1,968,420.93 = 863,336.51 : x
  2. Step 2: Convert to fraction form
    1,313,984.87/1,968,420.93 = 863,336.51/x
  3. Step 3: Cross multiply
    1,313,984.87x = 1,968,420.93 × 863,336.51
  4. Step 4: Simplify right side
    1,313,984.87x = 1,699,409,655,917.15
  5. Step 5: Solve for x
    x = 1,699,409,655,917.15/1,313,984.87
  6. Step 6: Final answer
    x = 1,293,325.13

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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.