Home / 728,099.37-1,004,554.47-422,114.69

Finding the Fourth Proportional to 728,099.37, 1,004,554.47 and 422,114.69

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Solution

The fourth proportional to 728,099.37, 1,004,554.47 and 422,114.69 is: 582,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,099.37 : 1,004,554.47 = 422,114.69 : x
  2. Step 2: Convert to fraction form
    728,099.37/1,004,554.47 = 422,114.69/x
  3. Step 3: Cross multiply
    728,099.37x = 1,004,554.47 × 422,114.69
  4. Step 4: Simplify right side
    728,099.37x = 424,037,198,692.16
  5. Step 5: Solve for x
    x = 424,037,198,692.16/728,099.37
  6. Step 6: Final answer
    x = 582,389.18

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.