Home / 1,260,231.60-1,890,462.60-512,122.80

Finding the Fourth Proportional to 1,260,231.60, 1,890,462.60 and 512,122.80

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Solution

The fourth proportional to 1,260,231.60, 1,890,462.60 and 512,122.80 is: 768,231.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,231.60 : 1,890,462.60 = 512,122.80 : x
  2. Step 2: Convert to fraction form
    1,260,231.60/1,890,462.60 = 512,122.80/x
  3. Step 3: Cross multiply
    1,260,231.60x = 1,890,462.60 × 512,122.80
  4. Step 4: Simplify right side
    1,260,231.60x = 968,149,000,007.28
  5. Step 5: Solve for x
    x = 968,149,000,007.28/1,260,231.60
  6. Step 6: Final answer
    x = 768,231.01

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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.