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Finding the Fourth Proportional to 422,794.06, 583,482.82 and 279,302.56

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Solution

The fourth proportional to 422,794.06, 583,482.82 and 279,302.56 is: 385,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,794.06 : 583,482.82 = 279,302.56 : x
  2. Step 2: Convert to fraction form
    422,794.06/583,482.82 = 279,302.56/x
  3. Step 3: Cross multiply
    422,794.06x = 583,482.82 × 279,302.56
  4. Step 4: Simplify right side
    422,794.06x = 162,968,245,342.02
  5. Step 5: Solve for x
    x = 162,968,245,342.02/422,794.06
  6. Step 6: Final answer
    x = 385,455.38

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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.