Home / 725,788.12-1,001,530.86-403,478.60

Finding the Fourth Proportional to 725,788.12, 1,001,530.86 and 403,478.60

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Solution

The fourth proportional to 725,788.12, 1,001,530.86 and 403,478.60 is: 556,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,788.12 : 1,001,530.86 = 403,478.60 : x
  2. Step 2: Convert to fraction form
    725,788.12/1,001,530.86 = 403,478.60/x
  3. Step 3: Cross multiply
    725,788.12x = 1,001,530.86 × 403,478.60
  4. Step 4: Simplify right side
    725,788.12x = 404,096,269,249.60
  5. Step 5: Solve for x
    x = 404,096,269,249.60/725,788.12
  6. Step 6: Final answer
    x = 556,768.92

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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.