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Finding the Fourth Proportional to 497,685.70, 746,528.55 and 308,728.90

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Solution

The fourth proportional to 497,685.70, 746,528.55 and 308,728.90 is: 463,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,685.70 : 746,528.55 = 308,728.90 : x
  2. Step 2: Convert to fraction form
    497,685.70/746,528.55 = 308,728.90/x
  3. Step 3: Cross multiply
    497,685.70x = 746,528.55 × 308,728.90
  4. Step 4: Simplify right side
    497,685.70x = 230,474,938,060.10
  5. Step 5: Solve for x
    x = 230,474,938,060.10/497,685.70
  6. Step 6: Final answer
    x = 463,093.35

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Similar ratio
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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.