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Finding the Fourth Proportional to 530,006.64, 731,245.56 and 323,318.72

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Solution

The fourth proportional to 530,006.64, 731,245.56 and 323,318.72 is: 446,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,006.64 : 731,245.56 = 323,318.72 : x
  2. Step 2: Convert to fraction form
    530,006.64/731,245.56 = 323,318.72/x
  3. Step 3: Cross multiply
    530,006.64x = 731,245.56 × 323,318.72
  4. Step 4: Simplify right side
    530,006.64x = 236,425,378,464.88
  5. Step 5: Solve for x
    x = 236,425,378,464.88/530,006.64
  6. Step 6: Final answer
    x = 446,080.03

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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.