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Finding the Fourth Proportional to 508,274.64, 761,449.60 and 339,285.44

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Solution

The fourth proportional to 508,274.64, 761,449.60 and 339,285.44 is: 508,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,274.64 : 761,449.60 = 339,285.44 : x
  2. Step 2: Convert to fraction form
    508,274.64/761,449.60 = 339,285.44/x
  3. Step 3: Cross multiply
    508,274.64x = 761,449.60 × 339,285.44
  4. Step 4: Simplify right side
    508,274.64x = 258,348,762,573.82
  5. Step 5: Solve for x
    x = 258,348,762,573.82/508,274.64
  6. Step 6: Final answer
    x = 508,285.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.