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Finding the Fourth Proportional to 603,931.30, 906,006.30 and 303,656.20

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Solution

The fourth proportional to 603,931.30, 906,006.30 and 303,656.20 is: 455,539.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,931.30 : 906,006.30 = 303,656.20 : x
  2. Step 2: Convert to fraction form
    603,931.30/906,006.30 = 303,656.20/x
  3. Step 3: Cross multiply
    603,931.30x = 906,006.30 × 303,656.20
  4. Step 4: Simplify right side
    603,931.30x = 275,114,430,234.06
  5. Step 5: Solve for x
    x = 275,114,430,234.06/603,931.30
  6. Step 6: Final answer
    x = 455,539.28

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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.