Home / 668,322.69-1,002,083.68-212,717.13

Finding the Fourth Proportional to 668,322.69, 1,002,083.68 and 212,717.13

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Solution

The fourth proportional to 668,322.69, 1,002,083.68 and 212,717.13 is: 318,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,322.69 : 1,002,083.68 = 212,717.13 : x
  2. Step 2: Convert to fraction form
    668,322.69/1,002,083.68 = 212,717.13/x
  3. Step 3: Cross multiply
    668,322.69x = 1,002,083.68 × 212,717.13
  4. Step 4: Simplify right side
    668,322.69x = 213,160,364,429.44
  5. Step 5: Solve for x
    x = 213,160,364,429.44/668,322.69
  6. Step 6: Final answer
    x = 318,948.27

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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.