Home / 379,913.38-521,535.06-326,104.98

Finding the Fourth Proportional to 379,913.38, 521,535.06 and 326,104.98

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Solution

The fourth proportional to 379,913.38, 521,535.06 and 326,104.98 is: 447,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,913.38 : 521,535.06 = 326,104.98 : x
  2. Step 2: Convert to fraction form
    379,913.38/521,535.06 = 326,104.98/x
  3. Step 3: Cross multiply
    379,913.38x = 521,535.06 × 326,104.98
  4. Step 4: Simplify right side
    379,913.38x = 170,075,180,310.60
  5. Step 5: Solve for x
    x = 170,075,180,310.60/379,913.38
  6. Step 6: Final answer
    x = 447,668.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.