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Finding the Fourth Proportional to 520,080.90, 729,096.30 and 520,080.90

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Solution

The fourth proportional to 520,080.90, 729,096.30 and 520,080.90 is: 729,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,080.90 : 729,096.30 = 520,080.90 : x
  2. Step 2: Convert to fraction form
    520,080.90/729,096.30 = 520,080.90/x
  3. Step 3: Cross multiply
    520,080.90x = 729,096.30 × 520,080.90
  4. Step 4: Simplify right side
    520,080.90x = 379,189,059,890.67
  5. Step 5: Solve for x
    x = 379,189,059,890.67/520,080.90
  6. Step 6: Final answer
    x = 729,096.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.