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Finding the Fourth Proportional to 561,349.49, 774,662.58 and 303,226.42

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Solution

The fourth proportional to 561,349.49, 774,662.58 and 303,226.42 is: 418,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,349.49 : 774,662.58 = 303,226.42 : x
  2. Step 2: Convert to fraction form
    561,349.49/774,662.58 = 303,226.42/x
  3. Step 3: Cross multiply
    561,349.49x = 774,662.58 × 303,226.42
  4. Step 4: Simplify right side
    561,349.49x = 234,898,160,841.36
  5. Step 5: Solve for x
    x = 234,898,160,841.36/561,349.49
  6. Step 6: Final answer
    x = 418,452.61

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.