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Finding the Fourth Proportional to 608,523.80, 839,483.46 and 393,733.88

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Solution

The fourth proportional to 608,523.80, 839,483.46 and 393,733.88 is: 543,171.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,523.80 : 839,483.46 = 393,733.88 : x
  2. Step 2: Convert to fraction form
    608,523.80/839,483.46 = 393,733.88/x
  3. Step 3: Cross multiply
    608,523.80x = 839,483.46 × 393,733.88
  4. Step 4: Simplify right side
    608,523.80x = 330,533,079,901.63
  5. Step 5: Solve for x
    x = 330,533,079,901.63/608,523.80
  6. Step 6: Final answer
    x = 543,171.98

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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.