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Finding the Fourth Proportional to 528,093.04, 728,768.59 and 286,375.55

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Solution

The fourth proportional to 528,093.04, 728,768.59 and 286,375.55 is: 395,198.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,093.04 : 728,768.59 = 286,375.55 : x
  2. Step 2: Convert to fraction form
    528,093.04/728,768.59 = 286,375.55/x
  3. Step 3: Cross multiply
    528,093.04x = 728,768.59 × 286,375.55
  4. Step 4: Simplify right side
    528,093.04x = 208,701,501,424.19
  5. Step 5: Solve for x
    x = 208,701,501,424.19/528,093.04
  6. Step 6: Final answer
    x = 395,198.36

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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.