Home / 678,956.49-1,018,655.87-323,924.58

Finding the Fourth Proportional to 678,956.49, 1,018,655.87 and 323,924.58

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Solution

The fourth proportional to 678,956.49, 1,018,655.87 and 323,924.58 is: 485,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,956.49 : 1,018,655.87 = 323,924.58 : x
  2. Step 2: Convert to fraction form
    678,956.49/1,018,655.87 = 323,924.58/x
  3. Step 3: Cross multiply
    678,956.49x = 1,018,655.87 × 323,924.58
  4. Step 4: Simplify right side
    678,956.49x = 329,967,673,234.66
  5. Step 5: Solve for x
    x = 329,967,673,234.66/678,956.49
  6. Step 6: Final answer
    x = 485,992.37

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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.