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Finding the Fourth Proportional to 439,741.60, 657,644.10 and 368,882.80

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Solution

The fourth proportional to 439,741.60, 657,644.10 and 368,882.80 is: 551,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,741.60 : 657,644.10 = 368,882.80 : x
  2. Step 2: Convert to fraction form
    439,741.60/657,644.10 = 368,882.80/x
  3. Step 3: Cross multiply
    439,741.60x = 657,644.10 × 368,882.80
  4. Step 4: Simplify right side
    439,741.60x = 242,593,597,011.48
  5. Step 5: Solve for x
    x = 242,593,597,011.48/439,741.60
  6. Step 6: Final answer
    x = 551,673.07

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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.