Home / 668,722.94-1,003,247.79-213,314.25

Finding the Fourth Proportional to 668,722.94, 1,003,247.79 and 213,314.25

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Solution

The fourth proportional to 668,722.94, 1,003,247.79 and 213,314.25 is: 320,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,722.94 : 1,003,247.79 = 213,314.25 : x
  2. Step 2: Convert to fraction form
    668,722.94/1,003,247.79 = 213,314.25/x
  3. Step 3: Cross multiply
    668,722.94x = 1,003,247.79 × 213,314.25
  4. Step 4: Simplify right side
    668,722.94x = 214,007,049,888.01
  5. Step 5: Solve for x
    x = 214,007,049,888.01/668,722.94
  6. Step 6: Final answer
    x = 320,023.49

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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.