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Finding the Fourth Proportional to 494,368.52, 682,246.94 and 279,495.77

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Solution

The fourth proportional to 494,368.52, 682,246.94 and 279,495.77 is: 385,714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,368.52 : 682,246.94 = 279,495.77 : x
  2. Step 2: Convert to fraction form
    494,368.52/682,246.94 = 279,495.77/x
  3. Step 3: Cross multiply
    494,368.52x = 682,246.94 × 279,495.77
  4. Step 4: Simplify right side
    494,368.52x = 190,685,134,133.58
  5. Step 5: Solve for x
    x = 190,685,134,133.58/494,368.52
  6. Step 6: Final answer
    x = 385,714.55

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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.