Home / 1,687,301.72-2,531,324.37-489,274.05

Finding the Fourth Proportional to 1,687,301.72, 2,531,324.37 and 489,274.05

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Solution

The fourth proportional to 1,687,301.72, 2,531,324.37 and 489,274.05 is: 734,018.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,301.72 : 2,531,324.37 = 489,274.05 : x
  2. Step 2: Convert to fraction form
    1,687,301.72/2,531,324.37 = 489,274.05/x
  3. Step 3: Cross multiply
    1,687,301.72x = 2,531,324.37 × 489,274.05
  4. Step 4: Simplify right side
    1,687,301.72x = 1,238,511,323,927.23
  5. Step 5: Solve for x
    x = 1,238,511,323,927.23/1,687,301.72
  6. Step 6: Final answer
    x = 734,018.89

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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.