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Finding the Fourth Proportional to 499,628.96, 689,773.24 and 330,354.08

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Solution

The fourth proportional to 499,628.96, 689,773.24 and 330,354.08 is: 456,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,628.96 : 689,773.24 = 330,354.08 : x
  2. Step 2: Convert to fraction form
    499,628.96/689,773.24 = 330,354.08/x
  3. Step 3: Cross multiply
    499,628.96x = 689,773.24 × 330,354.08
  4. Step 4: Simplify right side
    499,628.96x = 227,869,404,108.82
  5. Step 5: Solve for x
    x = 227,869,404,108.82/499,628.96
  6. Step 6: Final answer
    x = 456,077.25

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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.