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Finding the Fourth Proportional to 494,553.60, 742,705.20 and 382,506.30

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Solution

The fourth proportional to 494,553.60, 742,705.20 and 382,506.30 is: 574,436.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,553.60 : 742,705.20 = 382,506.30 : x
  2. Step 2: Convert to fraction form
    494,553.60/742,705.20 = 382,506.30/x
  3. Step 3: Cross multiply
    494,553.60x = 742,705.20 × 382,506.30
  4. Step 4: Simplify right side
    494,553.60x = 284,089,418,042.76
  5. Step 5: Solve for x
    x = 284,089,418,042.76/494,553.60
  6. Step 6: Final answer
    x = 574,436.05

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1.5x scale

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.