Home / 1,279,663.96-1,920,676.74-649,020.64

Finding the Fourth Proportional to 1,279,663.96, 1,920,676.74 and 649,020.64

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Solution

The fourth proportional to 1,279,663.96, 1,920,676.74 and 649,020.64 is: 974,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,663.96 : 1,920,676.74 = 649,020.64 : x
  2. Step 2: Convert to fraction form
    1,279,663.96/1,920,676.74 = 649,020.64/x
  3. Step 3: Cross multiply
    1,279,663.96x = 1,920,676.74 × 649,020.64
  4. Step 4: Simplify right side
    1,279,663.96x = 1,246,558,847,027.91
  5. Step 5: Solve for x
    x = 1,246,558,847,027.91/1,279,663.96
  6. Step 6: Final answer
    x = 974,129.84

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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.