Home / 1,444,721.81-2,167,103.89-686,640.62

Finding the Fourth Proportional to 1,444,721.81, 2,167,103.89 and 686,640.62

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Solution

The fourth proportional to 1,444,721.81, 2,167,103.89 and 686,640.62 is: 1,029,971.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444,721.81 : 2,167,103.89 = 686,640.62 : x
  2. Step 2: Convert to fraction form
    1,444,721.81/2,167,103.89 = 686,640.62/x
  3. Step 3: Cross multiply
    1,444,721.81x = 2,167,103.89 × 686,640.62
  4. Step 4: Simplify right side
    1,444,721.81x = 1,488,021,564,910.07
  5. Step 5: Solve for x
    x = 1,488,021,564,910.07/1,444,721.81
  6. Step 6: Final answer
    x = 1,029,971.00

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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.