Home / 829,080.10-1,243,620.15-268,516.90

Finding the Fourth Proportional to 829,080.10, 1,243,620.15 and 268,516.90

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Solution

The fourth proportional to 829,080.10, 1,243,620.15 and 268,516.90 is: 402,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,080.10 : 1,243,620.15 = 268,516.90 : x
  2. Step 2: Convert to fraction form
    829,080.10/1,243,620.15 = 268,516.90/x
  3. Step 3: Cross multiply
    829,080.10x = 1,243,620.15 × 268,516.90
  4. Step 4: Simplify right side
    829,080.10x = 333,933,027,455.54
  5. Step 5: Solve for x
    x = 333,933,027,455.54/829,080.10
  6. Step 6: Final answer
    x = 402,775.35

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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.