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Finding the Fourth Proportional to 527,566.37, 728,040.58 and 285,855.48

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Solution

The fourth proportional to 527,566.37, 728,040.58 and 285,855.48 is: 394,480.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,566.37 : 728,040.58 = 285,855.48 : x
  2. Step 2: Convert to fraction form
    527,566.37/728,040.58 = 285,855.48/x
  3. Step 3: Cross multiply
    527,566.37x = 728,040.58 × 285,855.48
  4. Step 4: Simplify right side
    527,566.37x = 208,114,388,740.74
  5. Step 5: Solve for x
    x = 208,114,388,740.74/527,566.37
  6. Step 6: Final answer
    x = 394,480.02

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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.