Home / 1,638,731.70-2,458,978.84-1,579,084.38

Finding the Fourth Proportional to 1,638,731.70, 2,458,978.84 and 1,579,084.38

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Solution

The fourth proportional to 1,638,731.70, 2,458,978.84 and 1,579,084.38 is: 2,369,475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,731.70 : 2,458,978.84 = 1,579,084.38 : x
  2. Step 2: Convert to fraction form
    1,638,731.70/2,458,978.84 = 1,579,084.38/x
  3. Step 3: Cross multiply
    1,638,731.70x = 2,458,978.84 × 1,579,084.38
  4. Step 4: Simplify right side
    1,638,731.70x = 3,882,935,076,994.52
  5. Step 5: Solve for x
    x = 3,882,935,076,994.52/1,638,731.70
  6. Step 6: Final answer
    x = 2,369,475.78

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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.