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Finding the Fourth Proportional to 558,172.62, 770,335.31 and 328,802.09

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Solution

The fourth proportional to 558,172.62, 770,335.31 and 328,802.09 is: 453,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,172.62 : 770,335.31 = 328,802.09 : x
  2. Step 2: Convert to fraction form
    558,172.62/770,335.31 = 328,802.09/x
  3. Step 3: Cross multiply
    558,172.62x = 770,335.31 × 328,802.09
  4. Step 4: Simplify right side
    558,172.62x = 253,287,856,899.13
  5. Step 5: Solve for x
    x = 253,287,856,899.13/558,172.62
  6. Step 6: Final answer
    x = 453,780.51

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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.