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Finding the Fourth Proportional to 535,434.24, 738,892.36 and 305,988.90

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Solution

The fourth proportional to 535,434.24, 738,892.36 and 305,988.90 is: 422,260.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,434.24 : 738,892.36 = 305,988.90 : x
  2. Step 2: Convert to fraction form
    535,434.24/738,892.36 = 305,988.90/x
  3. Step 3: Cross multiply
    535,434.24x = 738,892.36 × 305,988.90
  4. Step 4: Simplify right side
    535,434.24x = 226,092,860,454.80
  5. Step 5: Solve for x
    x = 226,092,860,454.80/535,434.24
  6. Step 6: Final answer
    x = 422,260.74

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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.