Home / 1,099,424.40-1,649,136.60-389,524.20

Finding the Fourth Proportional to 1,099,424.40, 1,649,136.60 and 389,524.20

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Solution

The fourth proportional to 1,099,424.40, 1,649,136.60 and 389,524.20 is: 584,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,424.40 : 1,649,136.60 = 389,524.20 : x
  2. Step 2: Convert to fraction form
    1,099,424.40/1,649,136.60 = 389,524.20/x
  3. Step 3: Cross multiply
    1,099,424.40x = 1,649,136.60 × 389,524.20
  4. Step 4: Simplify right side
    1,099,424.40x = 642,378,614,805.72
  5. Step 5: Solve for x
    x = 642,378,614,805.72/1,099,424.40
  6. Step 6: Final answer
    x = 584,286.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.