Home / 681,107.94-1,021,661.64-316,332.54

Finding the Fourth Proportional to 681,107.94, 1,021,661.64 and 316,332.54

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Solution

The fourth proportional to 681,107.94, 1,021,661.64 and 316,332.54 is: 474,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,107.94 : 1,021,661.64 = 316,332.54 : x
  2. Step 2: Convert to fraction form
    681,107.94/1,021,661.64 = 316,332.54/x
  3. Step 3: Cross multiply
    681,107.94x = 1,021,661.64 × 316,332.54
  4. Step 4: Simplify right side
    681,107.94x = 323,184,821,601.77
  5. Step 5: Solve for x
    x = 323,184,821,601.77/681,107.94
  6. Step 6: Final answer
    x = 474,498.68

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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.