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Finding the Fourth Proportional to 678,773.04, 1,018,138 and 173,332.20

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Solution

The fourth proportional to 678,773.04, 1,018,138 and 173,332.20 is: 259,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,773.04 : 1,018,138 = 173,332.20 : x
  2. Step 2: Convert to fraction form
    678,773.04/1,018,138 = 173,332.20/x
  3. Step 3: Cross multiply
    678,773.04x = 1,018,138 × 173,332.20
  4. Step 4: Simplify right side
    678,773.04x = 176,476,099,443.60
  5. Step 5: Solve for x
    x = 176,476,099,443.60/678,773.04
  6. Step 6: Final answer
    x = 259,992.79

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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.