Home / 3,121,609.76-4,682,416.24-877,747.76

Finding the Fourth Proportional to 3,121,609.76, 4,682,416.24 and 877,747.76

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Solution

The fourth proportional to 3,121,609.76, 4,682,416.24 and 877,747.76 is: 1,316,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,609.76 : 4,682,416.24 = 877,747.76 : x
  2. Step 2: Convert to fraction form
    3,121,609.76/4,682,416.24 = 877,747.76/x
  3. Step 3: Cross multiply
    3,121,609.76x = 4,682,416.24 × 877,747.76
  4. Step 4: Simplify right side
    3,121,609.76x = 4,109,980,366,047.62
  5. Step 5: Solve for x
    x = 4,109,980,366,047.62/3,121,609.76
  6. Step 6: Final answer
    x = 1,316,622.09

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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.