Home / 647,984.37-972,410.40-268,905.48

Finding the Fourth Proportional to 647,984.37, 972,410.40 and 268,905.48

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Solution

The fourth proportional to 647,984.37, 972,410.40 and 268,905.48 is: 403,538.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,984.37 : 972,410.40 = 268,905.48 : x
  2. Step 2: Convert to fraction form
    647,984.37/972,410.40 = 268,905.48/x
  3. Step 3: Cross multiply
    647,984.37x = 972,410.40 × 268,905.48
  4. Step 4: Simplify right side
    647,984.37x = 261,486,485,368.99
  5. Step 5: Solve for x
    x = 261,486,485,368.99/647,984.37
  6. Step 6: Final answer
    x = 403,538.26

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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.