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Finding the Fourth Proportional to 449,272, 619,489.92 and 367,344.64

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Solution

The fourth proportional to 449,272, 619,489.92 and 367,344.64 is: 506,522.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,272 : 619,489.92 = 367,344.64 : x
  2. Step 2: Convert to fraction form
    449,272/619,489.92 = 367,344.64/x
  3. Step 3: Cross multiply
    449,272x = 619,489.92 × 367,344.64
  4. Step 4: Simplify right side
    449,272x = 227,566,301,646.03
  5. Step 5: Solve for x
    x = 227,566,301,646.03/449,272
  6. Step 6: Final answer
    x = 506,522.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.