Home / 1,279,662.96-1,920,675.24-649,019.64

Finding the Fourth Proportional to 1,279,662.96, 1,920,675.24 and 649,019.64

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Solution

The fourth proportional to 1,279,662.96, 1,920,675.24 and 649,019.64 is: 974,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,662.96 : 1,920,675.24 = 649,019.64 : x
  2. Step 2: Convert to fraction form
    1,279,662.96/1,920,675.24 = 649,019.64/x
  3. Step 3: Cross multiply
    1,279,662.96x = 1,920,675.24 × 649,019.64
  4. Step 4: Simplify right side
    1,279,662.96x = 1,246,555,952,821.71
  5. Step 5: Solve for x
    x = 1,246,555,952,821.71/1,279,662.96
  6. Step 6: Final answer
    x = 974,128.34

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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.