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Finding the Fourth Proportional to 497,027.60, 744,666.60 and 427,043.60

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Solution

The fourth proportional to 497,027.60, 744,666.60 and 427,043.60 is: 639,813.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,027.60 : 744,666.60 = 427,043.60 : x
  2. Step 2: Convert to fraction form
    497,027.60/744,666.60 = 427,043.60/x
  3. Step 3: Cross multiply
    497,027.60x = 744,666.60 × 427,043.60
  4. Step 4: Simplify right side
    497,027.60x = 318,005,105,663.76
  5. Step 5: Solve for x
    x = 318,005,105,663.76/497,027.60
  6. Step 6: Final answer
    x = 639,813.78

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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.