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Finding the Fourth Proportional to 494,677.80, 742,016.70 and 323,435.70

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Solution

The fourth proportional to 494,677.80, 742,016.70 and 323,435.70 is: 485,153.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,677.80 : 742,016.70 = 323,435.70 : x
  2. Step 2: Convert to fraction form
    494,677.80/742,016.70 = 323,435.70/x
  3. Step 3: Cross multiply
    494,677.80x = 742,016.70 × 323,435.70
  4. Step 4: Simplify right side
    494,677.80x = 239,994,690,776.19
  5. Step 5: Solve for x
    x = 239,994,690,776.19/494,677.80
  6. Step 6: Final answer
    x = 485,153.55

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Similar ratio
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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.