Home / 899,640.33-1,241,537.09-491,769.60

Finding the Fourth Proportional to 899,640.33, 1,241,537.09 and 491,769.60

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Solution

The fourth proportional to 899,640.33, 1,241,537.09 and 491,769.60 is: 678,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,640.33 : 1,241,537.09 = 491,769.60 : x
  2. Step 2: Convert to fraction form
    899,640.33/1,241,537.09 = 491,769.60/x
  3. Step 3: Cross multiply
    899,640.33x = 1,241,537.09 × 491,769.60
  4. Step 4: Simplify right side
    899,640.33x = 610,550,198,134.46
  5. Step 5: Solve for x
    x = 610,550,198,134.46/899,640.33
  6. Step 6: Final answer
    x = 678,660.32

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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.