Home / 631,385.73-947,313.87-378,847.47

Finding the Fourth Proportional to 631,385.73, 947,313.87 and 378,847.47

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Solution

The fourth proportional to 631,385.73, 947,313.87 and 378,847.47 is: 568,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,385.73 : 947,313.87 = 378,847.47 : x
  2. Step 2: Convert to fraction form
    631,385.73/947,313.87 = 378,847.47/x
  3. Step 3: Cross multiply
    631,385.73x = 947,313.87 × 378,847.47
  4. Step 4: Simplify right side
    631,385.73x = 358,887,458,208.84
  5. Step 5: Solve for x
    x = 358,887,458,208.84/631,385.73
  6. Step 6: Final answer
    x = 568,412.37

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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.