Home / 727,211.82-1,090,814.74-221,771.31

Finding the Fourth Proportional to 727,211.82, 1,090,814.74 and 221,771.31

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Solution

The fourth proportional to 727,211.82, 1,090,814.74 and 221,771.31 is: 332,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,211.82 : 1,090,814.74 = 221,771.31 : x
  2. Step 2: Convert to fraction form
    727,211.82/1,090,814.74 = 221,771.31/x
  3. Step 3: Cross multiply
    727,211.82x = 1,090,814.74 × 221,771.31
  4. Step 4: Simplify right side
    727,211.82x = 241,911,413,857.11
  5. Step 5: Solve for x
    x = 241,911,413,857.11/727,211.82
  6. Step 6: Final answer
    x = 332,656.05

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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.