Home / 764,408.78-1,146,723.27-284,595.85

Finding the Fourth Proportional to 764,408.78, 1,146,723.27 and 284,595.85

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Solution

The fourth proportional to 764,408.78, 1,146,723.27 and 284,595.85 is: 426,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,408.78 : 1,146,723.27 = 284,595.85 : x
  2. Step 2: Convert to fraction form
    764,408.78/1,146,723.27 = 284,595.85/x
  3. Step 3: Cross multiply
    764,408.78x = 1,146,723.27 × 284,595.85
  4. Step 4: Simplify right side
    764,408.78x = 326,352,676,583.83
  5. Step 5: Solve for x
    x = 326,352,676,583.83/764,408.78
  6. Step 6: Final answer
    x = 426,934.76

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Double scale
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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.