Home / 1,720,021.80-2,579,376.60-521,545.80

Finding the Fourth Proportional to 1,720,021.80, 2,579,376.60 and 521,545.80

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Solution

The fourth proportional to 1,720,021.80, 2,579,376.60 and 521,545.80 is: 782,119.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,021.80 : 2,579,376.60 = 521,545.80 : x
  2. Step 2: Convert to fraction form
    1,720,021.80/2,579,376.60 = 521,545.80/x
  3. Step 3: Cross multiply
    1,720,021.80x = 2,579,376.60 × 521,545.80
  4. Step 4: Simplify right side
    1,720,021.80x = 1,345,263,032,348.28
  5. Step 5: Solve for x
    x = 1,345,263,032,348.28/1,720,021.80
  6. Step 6: Final answer
    x = 782,119.76

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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.