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Finding the Fourth Proportional to 558,170.89, 770,309.45 and 328,881

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Solution

The fourth proportional to 558,170.89, 770,309.45 and 328,881 is: 453,875.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,170.89 : 770,309.45 = 328,881 : x
  2. Step 2: Convert to fraction form
    558,170.89/770,309.45 = 328,881/x
  3. Step 3: Cross multiply
    558,170.89x = 770,309.45 × 328,881
  4. Step 4: Simplify right side
    558,170.89x = 253,340,141,814.35
  5. Step 5: Solve for x
    x = 253,340,141,814.35/558,170.89
  6. Step 6: Final answer
    x = 453,875.59

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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.