Home / 769,336.30-1,061,830.78-507,231.38

Finding the Fourth Proportional to 769,336.30, 1,061,830.78 and 507,231.38

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Solution

The fourth proportional to 769,336.30, 1,061,830.78 and 507,231.38 is: 700,076.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,336.30 : 1,061,830.78 = 507,231.38 : x
  2. Step 2: Convert to fraction form
    769,336.30/1,061,830.78 = 507,231.38/x
  3. Step 3: Cross multiply
    769,336.30x = 1,061,830.78 × 507,231.38
  4. Step 4: Simplify right side
    769,336.30x = 538,593,891,865.88
  5. Step 5: Solve for x
    x = 538,593,891,865.88/769,336.30
  6. Step 6: Final answer
    x = 700,076.02

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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.