Home / 694,983.12-1,040,841.72-338,880.72

Finding the Fourth Proportional to 694,983.12, 1,040,841.72 and 338,880.72

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Solution

The fourth proportional to 694,983.12, 1,040,841.72 and 338,880.72 is: 507,524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,983.12 : 1,040,841.72 = 338,880.72 : x
  2. Step 2: Convert to fraction form
    694,983.12/1,040,841.72 = 338,880.72/x
  3. Step 3: Cross multiply
    694,983.12x = 1,040,841.72 × 338,880.72
  4. Step 4: Simplify right side
    694,983.12x = 352,721,191,479.64
  5. Step 5: Solve for x
    x = 352,721,191,479.64/694,983.12
  6. Step 6: Final answer
    x = 507,524.83

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Double scale
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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.