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Finding the Fourth Proportional to 497,029.60, 744,669.60 and 427,045.60

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Solution

The fourth proportional to 497,029.60, 744,669.60 and 427,045.60 is: 639,816.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,029.60 : 744,669.60 = 427,045.60 : x
  2. Step 2: Convert to fraction form
    497,029.60/744,669.60 = 427,045.60/x
  3. Step 3: Cross multiply
    497,029.60x = 744,669.60 × 427,045.60
  4. Step 4: Simplify right side
    497,029.60x = 318,007,876,133.76
  5. Step 5: Solve for x
    x = 318,007,876,133.76/497,029.60
  6. Step 6: Final answer
    x = 639,816.78

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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.