Home / 678,678.04-1,018,000.66-173,243.21

Finding the Fourth Proportional to 678,678.04, 1,018,000.66 and 173,243.21

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Solution

The fourth proportional to 678,678.04, 1,018,000.66 and 173,243.21 is: 259,860.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,678.04 : 1,018,000.66 = 173,243.21 : x
  2. Step 2: Convert to fraction form
    678,678.04/1,018,000.66 = 173,243.21/x
  3. Step 3: Cross multiply
    678,678.04x = 1,018,000.66 × 173,243.21
  4. Step 4: Simplify right side
    678,678.04x = 176,361,696,922.24
  5. Step 5: Solve for x
    x = 176,361,696,922.24/678,678.04
  6. Step 6: Final answer
    x = 259,860.62

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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.