Home / 850,715.72-1,276,662.92-338,328.35

Finding the Fourth Proportional to 850,715.72, 1,276,662.92 and 338,328.35

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Solution

The fourth proportional to 850,715.72, 1,276,662.92 and 338,328.35 is: 507,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,715.72 : 1,276,662.92 = 338,328.35 : x
  2. Step 2: Convert to fraction form
    850,715.72/1,276,662.92 = 338,328.35/x
  3. Step 3: Cross multiply
    850,715.72x = 1,276,662.92 × 338,328.35
  4. Step 4: Simplify right side
    850,715.72x = 431,931,259,229.78
  5. Step 5: Solve for x
    x = 431,931,259,229.78/850,715.72
  6. Step 6: Final answer
    x = 507,726.90

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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.