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Finding the Fourth Proportional to 768,777.32, 1,153,170.06 and 504,213.20

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Solution

The fourth proportional to 768,777.32, 1,153,170.06 and 504,213.20 is: 756,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,777.32 : 1,153,170.06 = 504,213.20 : x
  2. Step 2: Convert to fraction form
    768,777.32/1,153,170.06 = 504,213.20/x
  3. Step 3: Cross multiply
    768,777.32x = 1,153,170.06 × 504,213.20
  4. Step 4: Simplify right side
    768,777.32x = 581,443,566,096.79
  5. Step 5: Solve for x
    x = 581,443,566,096.79/768,777.32
  6. Step 6: Final answer
    x = 756,322.48

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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.