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Finding the Fourth Proportional to 577,429.60, 865,107.60 and 494,485.60

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Solution

The fourth proportional to 577,429.60, 865,107.60 and 494,485.60 is: 740,840.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,429.60 : 865,107.60 = 494,485.60 : x
  2. Step 2: Convert to fraction form
    577,429.60/865,107.60 = 494,485.60/x
  3. Step 3: Cross multiply
    577,429.60x = 865,107.60 × 494,485.60
  4. Step 4: Simplify right side
    577,429.60x = 427,783,250,650.56
  5. Step 5: Solve for x
    x = 427,783,250,650.56/577,429.60
  6. Step 6: Final answer
    x = 740,840.53

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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.