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Finding the Fourth Proportional to 525,322.44, 786,720.63 and 299,999.88

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Solution

The fourth proportional to 525,322.44, 786,720.63 and 299,999.88 is: 449,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,322.44 : 786,720.63 = 299,999.88 : x
  2. Step 2: Convert to fraction form
    525,322.44/786,720.63 = 299,999.88/x
  3. Step 3: Cross multiply
    525,322.44x = 786,720.63 × 299,999.88
  4. Step 4: Simplify right side
    525,322.44x = 236,016,094,593.52
  5. Step 5: Solve for x
    x = 236,016,094,593.52/525,322.44
  6. Step 6: Final answer
    x = 449,278.53

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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.