Home / 863,999.10-1,295,998.65-303,090.30

Finding the Fourth Proportional to 863,999.10, 1,295,998.65 and 303,090.30

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Solution

The fourth proportional to 863,999.10, 1,295,998.65 and 303,090.30 is: 454,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,999.10 : 1,295,998.65 = 303,090.30 : x
  2. Step 2: Convert to fraction form
    863,999.10/1,295,998.65 = 303,090.30/x
  3. Step 3: Cross multiply
    863,999.10x = 1,295,998.65 × 303,090.30
  4. Step 4: Simplify right side
    863,999.10x = 392,804,619,628.10
  5. Step 5: Solve for x
    x = 392,804,619,628.10/863,999.10
  6. Step 6: Final answer
    x = 454,635.45

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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.