Home / 668,802.84-1,003,408.38-213,381.96

Finding the Fourth Proportional to 668,802.84, 1,003,408.38 and 213,381.96

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Solution

The fourth proportional to 668,802.84, 1,003,408.38 and 213,381.96 is: 320,138.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,802.84 : 1,003,408.38 = 213,381.96 : x
  2. Step 2: Convert to fraction form
    668,802.84/1,003,408.38 = 213,381.96/x
  3. Step 3: Cross multiply
    668,802.84x = 1,003,408.38 × 213,381.96
  4. Step 4: Simplify right side
    668,802.84x = 214,109,246,804.83
  5. Step 5: Solve for x
    x = 214,109,246,804.83/668,802.84
  6. Step 6: Final answer
    x = 320,138.06

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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.