Home / 877,668.01-1,211,076.96-485,147.96

Finding the Fourth Proportional to 877,668.01, 1,211,076.96 and 485,147.96

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Solution

The fourth proportional to 877,668.01, 1,211,076.96 and 485,147.96 is: 669,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,668.01 : 1,211,076.96 = 485,147.96 : x
  2. Step 2: Convert to fraction form
    877,668.01/1,211,076.96 = 485,147.96/x
  3. Step 3: Cross multiply
    877,668.01x = 1,211,076.96 × 485,147.96
  4. Step 4: Simplify right side
    877,668.01x = 587,551,510,491.62
  5. Step 5: Solve for x
    x = 587,551,510,491.62/877,668.01
  6. Step 6: Final answer
    x = 669,446.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.