Home / 864,010.20-1,296,015.30-264,966.60

Finding the Fourth Proportional to 864,010.20, 1,296,015.30 and 264,966.60

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Solution

The fourth proportional to 864,010.20, 1,296,015.30 and 264,966.60 is: 397,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,010.20 : 1,296,015.30 = 264,966.60 : x
  2. Step 2: Convert to fraction form
    864,010.20/1,296,015.30 = 264,966.60/x
  3. Step 3: Cross multiply
    864,010.20x = 1,296,015.30 × 264,966.60
  4. Step 4: Simplify right side
    864,010.20x = 343,400,767,588.98
  5. Step 5: Solve for x
    x = 343,400,767,588.98/864,010.20
  6. Step 6: Final answer
    x = 397,449.90

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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.