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Finding the Fourth Proportional to 433,404.60, 648,839.70 and 308,988.60

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Solution

The fourth proportional to 433,404.60, 648,839.70 and 308,988.60 is: 462,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,404.60 : 648,839.70 = 308,988.60 : x
  2. Step 2: Convert to fraction form
    433,404.60/648,839.70 = 308,988.60/x
  3. Step 3: Cross multiply
    433,404.60x = 648,839.70 × 308,988.60
  4. Step 4: Simplify right side
    433,404.60x = 200,484,070,527.42
  5. Step 5: Solve for x
    x = 200,484,070,527.42/433,404.60
  6. Step 6: Final answer
    x = 462,579.47

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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.