Home / 783,691.23-1,080,492.71-507,561.21

Finding the Fourth Proportional to 783,691.23, 1,080,492.71 and 507,561.21

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Solution

The fourth proportional to 783,691.23, 1,080,492.71 and 507,561.21 is: 699,786.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,691.23 : 1,080,492.71 = 507,561.21 : x
  2. Step 2: Convert to fraction form
    783,691.23/1,080,492.71 = 507,561.21/x
  3. Step 3: Cross multiply
    783,691.23x = 1,080,492.71 × 507,561.21
  4. Step 4: Simplify right side
    783,691.23x = 548,416,184,745.97
  5. Step 5: Solve for x
    x = 548,416,184,745.97/783,691.23
  6. Step 6: Final answer
    x = 699,786.04

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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.