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Finding the Fourth Proportional to 538,392.90, 806,827.38 and 298,612.35

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Solution

The fourth proportional to 538,392.90, 806,827.38 and 298,612.35 is: 447,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,392.90 : 806,827.38 = 298,612.35 : x
  2. Step 2: Convert to fraction form
    538,392.90/806,827.38 = 298,612.35/x
  3. Step 3: Cross multiply
    538,392.90x = 806,827.38 × 298,612.35
  4. Step 4: Simplify right side
    538,392.90x = 240,928,619,986.14
  5. Step 5: Solve for x
    x = 240,928,619,986.14/538,392.90
  6. Step 6: Final answer
    x = 447,495.91

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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.