Home / 841,880.37-1,263,318.77-309,775.06

Finding the Fourth Proportional to 841,880.37, 1,263,318.77 and 309,775.06

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Solution

The fourth proportional to 841,880.37, 1,263,318.77 and 309,775.06 is: 464,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,880.37 : 1,263,318.77 = 309,775.06 : x
  2. Step 2: Convert to fraction form
    841,880.37/1,263,318.77 = 309,775.06/x
  3. Step 3: Cross multiply
    841,880.37x = 1,263,318.77 × 309,775.06
  4. Step 4: Simplify right side
    841,880.37x = 391,344,647,775.88
  5. Step 5: Solve for x
    x = 391,344,647,775.88/841,880.37
  6. Step 6: Final answer
    x = 464,845.91

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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.