Home / 947,867.40-1,308,057.12-518,149.44

Finding the Fourth Proportional to 947,867.40, 1,308,057.12 and 518,149.44

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Solution

The fourth proportional to 947,867.40, 1,308,057.12 and 518,149.44 is: 715,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,867.40 : 1,308,057.12 = 518,149.44 : x
  2. Step 2: Convert to fraction form
    947,867.40/1,308,057.12 = 518,149.44/x
  3. Step 3: Cross multiply
    947,867.40x = 1,308,057.12 × 518,149.44
  4. Step 4: Simplify right side
    947,867.40x = 677,769,064,216.01
  5. Step 5: Solve for x
    x = 677,769,064,216.01/947,867.40
  6. Step 6: Final answer
    x = 715,046.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.