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Finding the Fourth Proportional to 538,566.57, 807,162.98 and 285,968.07

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Solution

The fourth proportional to 538,566.57, 807,162.98 and 285,968.07 is: 428,587.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,566.57 : 807,162.98 = 285,968.07 : x
  2. Step 2: Convert to fraction form
    538,566.57/807,162.98 = 285,968.07/x
  3. Step 3: Cross multiply
    538,566.57x = 807,162.98 × 285,968.07
  4. Step 4: Simplify right side
    538,566.57x = 230,822,838,136.21
  5. Step 5: Solve for x
    x = 230,822,838,136.21/538,566.57
  6. Step 6: Final answer
    x = 428,587.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.