Home / 1,619,934.44-2,429,868.84-421,830.24

Finding the Fourth Proportional to 1,619,934.44, 2,429,868.84 and 421,830.24

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Solution

The fourth proportional to 1,619,934.44, 2,429,868.84 and 421,830.24 is: 632,736.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,934.44 : 2,429,868.84 = 421,830.24 : x
  2. Step 2: Convert to fraction form
    1,619,934.44/2,429,868.84 = 421,830.24/x
  3. Step 3: Cross multiply
    1,619,934.44x = 2,429,868.84 × 421,830.24
  4. Step 4: Simplify right side
    1,619,934.44x = 1,024,992,155,945.72
  5. Step 5: Solve for x
    x = 1,024,992,155,945.72/1,619,934.44
  6. Step 6: Final answer
    x = 632,736.81

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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.