Home / 1,626,371.49-2,439,676.94-428,285.37

Finding the Fourth Proportional to 1,626,371.49, 2,439,676.94 and 428,285.37

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Solution

The fourth proportional to 1,626,371.49, 2,439,676.94 and 428,285.37 is: 642,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,371.49 : 2,439,676.94 = 428,285.37 : x
  2. Step 2: Convert to fraction form
    1,626,371.49/2,439,676.94 = 428,285.37/x
  3. Step 3: Cross multiply
    1,626,371.49x = 2,439,676.94 × 428,285.37
  4. Step 4: Simplify right side
    1,626,371.49x = 1,044,877,938,786.94
  5. Step 5: Solve for x
    x = 1,044,877,938,786.94/1,626,371.49
  6. Step 6: Final answer
    x = 642,459.58

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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.