Home / 490,927-736,306.98-135,857.84

Finding the Fourth Proportional to 490,927, 736,306.98 and 135,857.84

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Solution

The fourth proportional to 490,927, 736,306.98 and 135,857.84 is: 203,763.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,927 : 736,306.98 = 135,857.84 : x
  2. Step 2: Convert to fraction form
    490,927/736,306.98 = 135,857.84/x
  3. Step 3: Cross multiply
    490,927x = 736,306.98 × 135,857.84
  4. Step 4: Simplify right side
    490,927x = 100,033,075,879.72
  5. Step 5: Solve for x
    x = 100,033,075,879.72/490,927
  6. Step 6: Final answer
    x = 203,763.65

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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.