Home / 808,284.46-1,115,424.39-440,760.69

Finding the Fourth Proportional to 808,284.46, 1,115,424.39 and 440,760.69

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Solution

The fourth proportional to 808,284.46, 1,115,424.39 and 440,760.69 is: 608,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,284.46 : 1,115,424.39 = 440,760.69 : x
  2. Step 2: Convert to fraction form
    808,284.46/1,115,424.39 = 440,760.69/x
  3. Step 3: Cross multiply
    808,284.46x = 1,115,424.39 × 440,760.69
  4. Step 4: Simplify right side
    808,284.46x = 491,635,221,575.43
  5. Step 5: Solve for x
    x = 491,635,221,575.43/808,284.46
  6. Step 6: Final answer
    x = 608,245.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.