Home / 493,821.44-681,528.89-278,975.34

Finding the Fourth Proportional to 493,821.44, 681,528.89 and 278,975.34

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Solution

The fourth proportional to 493,821.44, 681,528.89 and 278,975.34 is: 385,017.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,821.44 : 681,528.89 = 278,975.34 : x
  2. Step 2: Convert to fraction form
    493,821.44/681,528.89 = 278,975.34/x
  3. Step 3: Cross multiply
    493,821.44x = 681,528.89 × 278,975.34
  4. Step 4: Simplify right side
    493,821.44x = 190,129,752,935.78
  5. Step 5: Solve for x
    x = 190,129,752,935.78/493,821.44
  6. Step 6: Final answer
    x = 385,017.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.