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Finding the Fourth Proportional to 603,975.30, 906,072.30 and 303,700.20

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Solution

The fourth proportional to 603,975.30, 906,072.30 and 303,700.20 is: 455,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,975.30 : 906,072.30 = 303,700.20 : x
  2. Step 2: Convert to fraction form
    603,975.30/906,072.30 = 303,700.20/x
  3. Step 3: Cross multiply
    603,975.30x = 906,072.30 × 303,700.20
  4. Step 4: Simplify right side
    603,975.30x = 275,174,338,724.46
  5. Step 5: Solve for x
    x = 275,174,338,724.46/603,975.30
  6. Step 6: Final answer
    x = 455,605.29

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.