Home / 751,504.11-1,037,071.86-407,338.65

Finding the Fourth Proportional to 751,504.11, 1,037,071.86 and 407,338.65

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Solution

The fourth proportional to 751,504.11, 1,037,071.86 and 407,338.65 is: 562,125.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,504.11 : 1,037,071.86 = 407,338.65 : x
  2. Step 2: Convert to fraction form
    751,504.11/1,037,071.86 = 407,338.65/x
  3. Step 3: Cross multiply
    751,504.11x = 1,037,071.86 × 407,338.65
  4. Step 4: Simplify right side
    751,504.11x = 422,439,451,405.39
  5. Step 5: Solve for x
    x = 422,439,451,405.39/751,504.11
  6. Step 6: Final answer
    x = 562,125.27

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Double scale
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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.