Home / 1,279,650.96-1,920,657.24-649,007.64

Finding the Fourth Proportional to 1,279,650.96, 1,920,657.24 and 649,007.64

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Solution

The fourth proportional to 1,279,650.96, 1,920,657.24 and 649,007.64 is: 974,110.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,650.96 : 1,920,657.24 = 649,007.64 : x
  2. Step 2: Convert to fraction form
    1,279,650.96/1,920,657.24 = 649,007.64/x
  3. Step 3: Cross multiply
    1,279,650.96x = 1,920,657.24 × 649,007.64
  4. Step 4: Simplify right side
    1,279,650.96x = 1,246,521,222,581.31
  5. Step 5: Solve for x
    x = 1,246,521,222,581.31/1,279,650.96
  6. Step 6: Final answer
    x = 974,110.33

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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.