Home / 1,638,732.45-2,458,979.96-1,579,085.13

Finding the Fourth Proportional to 1,638,732.45, 2,458,979.96 and 1,579,085.13

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Solution

The fourth proportional to 1,638,732.45, 2,458,979.96 and 1,579,085.13 is: 2,369,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,732.45 : 2,458,979.96 = 1,579,085.13 : x
  2. Step 2: Convert to fraction form
    1,638,732.45/2,458,979.96 = 1,579,085.13/x
  3. Step 3: Cross multiply
    1,638,732.45x = 2,458,979.96 × 1,579,085.13
  4. Step 4: Simplify right side
    1,638,732.45x = 3,882,938,681,908.57
  5. Step 5: Solve for x
    x = 3,882,938,681,908.57/1,638,732.45
  6. Step 6: Final answer
    x = 2,369,476.90

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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.