Home / 1,382,408.60-2,073,612.90-385,136.60

Finding the Fourth Proportional to 1,382,408.60, 2,073,612.90 and 385,136.60

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Solution

The fourth proportional to 1,382,408.60, 2,073,612.90 and 385,136.60 is: 577,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,408.60 : 2,073,612.90 = 385,136.60 : x
  2. Step 2: Convert to fraction form
    1,382,408.60/2,073,612.90 = 385,136.60/x
  3. Step 3: Cross multiply
    1,382,408.60x = 2,073,612.90 × 385,136.60
  4. Step 4: Simplify right side
    1,382,408.60x = 798,624,222,022.14
  5. Step 5: Solve for x
    x = 798,624,222,022.14/1,382,408.60
  6. Step 6: Final answer
    x = 577,704.90

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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.