Home / 899,772.39-1,241,688.41-491,879.13

Finding the Fourth Proportional to 899,772.39, 1,241,688.41 and 491,879.13

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Solution

The fourth proportional to 899,772.39, 1,241,688.41 and 491,879.13 is: 678,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,772.39 : 1,241,688.41 = 491,879.13 : x
  2. Step 2: Convert to fraction form
    899,772.39/1,241,688.41 = 491,879.13/x
  3. Step 3: Cross multiply
    899,772.39x = 1,241,688.41 × 491,879.13
  4. Step 4: Simplify right side
    899,772.39x = 610,760,612,382.49
  5. Step 5: Solve for x
    x = 610,760,612,382.49/899,772.39
  6. Step 6: Final answer
    x = 678,794.57

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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.