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Finding the Fourth Proportional to 493,774.14, 681,422.31 and 278,923.26

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Solution

The fourth proportional to 493,774.14, 681,422.31 and 278,923.26 is: 384,922.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,774.14 : 681,422.31 = 278,923.26 : x
  2. Step 2: Convert to fraction form
    493,774.14/681,422.31 = 278,923.26/x
  3. Step 3: Cross multiply
    493,774.14x = 681,422.31 × 278,923.26
  4. Step 4: Simplify right side
    493,774.14x = 190,064,532,141.93
  5. Step 5: Solve for x
    x = 190,064,532,141.93/493,774.14
  6. Step 6: Final answer
    x = 384,922.01

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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.