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Finding the Fourth Proportional to 481,432.02, 721,878.06 and 329,800.42

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Solution

The fourth proportional to 481,432.02, 721,878.06 and 329,800.42 is: 494,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,432.02 : 721,878.06 = 329,800.42 : x
  2. Step 2: Convert to fraction form
    481,432.02/721,878.06 = 329,800.42/x
  3. Step 3: Cross multiply
    481,432.02x = 721,878.06 × 329,800.42
  4. Step 4: Simplify right side
    481,432.02x = 238,075,687,376.79
  5. Step 5: Solve for x
    x = 238,075,687,376.79/481,432.02
  6. Step 6: Final answer
    x = 494,515.69

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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.