Home / 668,721.94-1,003,246.29-213,313.25

Finding the Fourth Proportional to 668,721.94, 1,003,246.29 and 213,313.25

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Solution

The fourth proportional to 668,721.94, 1,003,246.29 and 213,313.25 is: 320,021.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,721.94 : 1,003,246.29 = 213,313.25 : x
  2. Step 2: Convert to fraction form
    668,721.94/1,003,246.29 = 213,313.25/x
  3. Step 3: Cross multiply
    668,721.94x = 1,003,246.29 × 213,313.25
  4. Step 4: Simplify right side
    668,721.94x = 214,005,723,535.20
  5. Step 5: Solve for x
    x = 214,005,723,535.20/668,721.94
  6. Step 6: Final answer
    x = 320,021.99

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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.