Home / 678,755.35-1,018,354.49-323,723.24

Finding the Fourth Proportional to 678,755.35, 1,018,354.49 and 323,723.24

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Solution

The fourth proportional to 678,755.35, 1,018,354.49 and 323,723.24 is: 485,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,755.35 : 1,018,354.49 = 323,723.24 : x
  2. Step 2: Convert to fraction form
    678,755.35/1,018,354.49 = 323,723.24/x
  3. Step 3: Cross multiply
    678,755.35x = 1,018,354.49 × 323,723.24
  4. Step 4: Simplify right side
    678,755.35x = 329,665,014,971.35
  5. Step 5: Solve for x
    x = 329,665,014,971.35/678,755.35
  6. Step 6: Final answer
    x = 485,690.48

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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.