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Finding the Fourth Proportional to 558,578, 770,889.48 and 320,114

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Solution

The fourth proportional to 558,578, 770,889.48 and 320,114 is: 441,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,578 : 770,889.48 = 320,114 : x
  2. Step 2: Convert to fraction form
    558,578/770,889.48 = 320,114/x
  3. Step 3: Cross multiply
    558,578x = 770,889.48 × 320,114
  4. Step 4: Simplify right side
    558,578x = 246,772,515,000.72
  5. Step 5: Solve for x
    x = 246,772,515,000.72/558,578
  6. Step 6: Final answer
    x = 441,787.03

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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.