Home / 899,377.38-1,241,144.46-491,478.12

Finding the Fourth Proportional to 899,377.38, 1,241,144.46 and 491,478.12

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Solution

The fourth proportional to 899,377.38, 1,241,144.46 and 491,478.12 is: 678,241.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,377.38 : 1,241,144.46 = 491,478.12 : x
  2. Step 2: Convert to fraction form
    899,377.38/1,241,144.46 = 491,478.12/x
  3. Step 3: Cross multiply
    899,377.38x = 1,241,144.46 × 491,478.12
  4. Step 4: Simplify right side
    899,377.38x = 609,995,345,849.22
  5. Step 5: Solve for x
    x = 609,995,345,849.22/899,377.38
  6. Step 6: Final answer
    x = 678,241.81

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Half scale
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Double scale
Find fourth proportional to 899,378.38, 1,241,145.84 and 491,479.12
Similar ratio
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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.