Home / 446,391.12-669,016.80-209,211.24

Finding the Fourth Proportional to 446,391.12, 669,016.80 and 209,211.24

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Solution

The fourth proportional to 446,391.12, 669,016.80 and 209,211.24 is: 313,549.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,391.12 : 669,016.80 = 209,211.24 : x
  2. Step 2: Convert to fraction form
    446,391.12/669,016.80 = 209,211.24/x
  3. Step 3: Cross multiply
    446,391.12x = 669,016.80 × 209,211.24
  4. Step 4: Simplify right side
    446,391.12x = 139,965,834,308.83
  5. Step 5: Solve for x
    x = 139,965,834,308.83/446,391.12
  6. Step 6: Final answer
    x = 313,549.77

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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.