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Finding the Fourth Proportional to 535,290.93, 738,767.10 and 308,936.43

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Solution

The fourth proportional to 535,290.93, 738,767.10 and 308,936.43 is: 426,370.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,290.93 : 738,767.10 = 308,936.43 : x
  2. Step 2: Convert to fraction form
    535,290.93/738,767.10 = 308,936.43/x
  3. Step 3: Cross multiply
    535,290.93x = 738,767.10 × 308,936.43
  4. Step 4: Simplify right side
    535,290.93x = 228,232,070,475.45
  5. Step 5: Solve for x
    x = 228,232,070,475.45/535,290.93
  6. Step 6: Final answer
    x = 426,370.14

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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.