Home / 1,678,128.96-2,519,388.72-996,260.64

Finding the Fourth Proportional to 1,678,128.96, 2,519,388.72 and 996,260.64

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Solution

The fourth proportional to 1,678,128.96, 2,519,388.72 and 996,260.64 is: 1,495,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,128.96 : 2,519,388.72 = 996,260.64 : x
  2. Step 2: Convert to fraction form
    1,678,128.96/2,519,388.72 = 996,260.64/x
  3. Step 3: Cross multiply
    1,678,128.96x = 2,519,388.72 × 996,260.64
  4. Step 4: Simplify right side
    1,678,128.96x = 2,509,967,818,595.98
  5. Step 5: Solve for x
    x = 2,509,967,818,595.98/1,678,128.96
  6. Step 6: Final answer
    x = 1,495,694.24

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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.