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Finding the Fourth Proportional to 439,716.60, 657,606.60 and 368,857.80

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Solution

The fourth proportional to 439,716.60, 657,606.60 and 368,857.80 is: 551,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,716.60 : 657,606.60 = 368,857.80 : x
  2. Step 2: Convert to fraction form
    439,716.60/657,606.60 = 368,857.80/x
  3. Step 3: Cross multiply
    439,716.60x = 657,606.60 × 368,857.80
  4. Step 4: Simplify right side
    439,716.60x = 242,563,323,741.48
  5. Step 5: Solve for x
    x = 242,563,323,741.48/439,716.60
  6. Step 6: Final answer
    x = 551,635.58

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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.