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Finding the Fourth Proportional to 535,226, 738,611.12 and 308,871.52

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Solution

The fourth proportional to 535,226, 738,611.12 and 308,871.52 is: 426,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,226 : 738,611.12 = 308,871.52 : x
  2. Step 2: Convert to fraction form
    535,226/738,611.12 = 308,871.52/x
  3. Step 3: Cross multiply
    535,226x = 738,611.12 × 308,871.52
  4. Step 4: Simplify right side
    535,226x = 228,135,939,323.30
  5. Step 5: Solve for x
    x = 228,135,939,323.30/535,226
  6. Step 6: Final answer
    x = 426,242.26

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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.