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Finding the Fourth Proportional to 558,675.63, 770,989.86 and 316,968.39

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Solution

The fourth proportional to 558,675.63, 770,989.86 and 316,968.39 is: 437,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,675.63 : 770,989.86 = 316,968.39 : x
  2. Step 2: Convert to fraction form
    558,675.63/770,989.86 = 316,968.39/x
  3. Step 3: Cross multiply
    558,675.63x = 770,989.86 × 316,968.39
  4. Step 4: Simplify right side
    558,675.63x = 244,379,414,630.53
  5. Step 5: Solve for x
    x = 244,379,414,630.53/558,675.63
  6. Step 6: Final answer
    x = 437,426.30

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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.