Home / 1,211,286.96-1,671,567.71-667,410.17

Finding the Fourth Proportional to 1,211,286.96, 1,671,567.71 and 667,410.17

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Solution

The fourth proportional to 1,211,286.96, 1,671,567.71 and 667,410.17 is: 921,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,286.96 : 1,671,567.71 = 667,410.17 : x
  2. Step 2: Convert to fraction form
    1,211,286.96/1,671,567.71 = 667,410.17/x
  3. Step 3: Cross multiply
    1,211,286.96x = 1,671,567.71 × 667,410.17
  4. Step 4: Simplify right side
    1,211,286.96x = 1,115,621,277,802.72
  5. Step 5: Solve for x
    x = 1,115,621,277,802.72/1,211,286.96
  6. Step 6: Final answer
    x = 921,021.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.