Home / 864,636.10-1,296,954.15-303,670.60

Finding the Fourth Proportional to 864,636.10, 1,296,954.15 and 303,670.60

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Solution

The fourth proportional to 864,636.10, 1,296,954.15 and 303,670.60 is: 455,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,636.10 : 1,296,954.15 = 303,670.60 : x
  2. Step 2: Convert to fraction form
    864,636.10/1,296,954.15 = 303,670.60/x
  3. Step 3: Cross multiply
    864,636.10x = 1,296,954.15 × 303,670.60
  4. Step 4: Simplify right side
    864,636.10x = 393,846,844,902.99
  5. Step 5: Solve for x
    x = 393,846,844,902.99/864,636.10
  6. Step 6: Final answer
    x = 455,505.90

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Half scale
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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.