Home / 678,720.14-1,018,083.18-229,443.38

Finding the Fourth Proportional to 678,720.14, 1,018,083.18 and 229,443.38

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Solution

The fourth proportional to 678,720.14, 1,018,083.18 and 229,443.38 is: 344,166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,720.14 : 1,018,083.18 = 229,443.38 : x
  2. Step 2: Convert to fraction form
    678,720.14/1,018,083.18 = 229,443.38/x
  3. Step 3: Cross multiply
    678,720.14x = 1,018,083.18 × 229,443.38
  4. Step 4: Simplify right side
    678,720.14x = 233,592,445,940.35
  5. Step 5: Solve for x
    x = 233,592,445,940.35/678,720.14
  6. Step 6: Final answer
    x = 344,166.07

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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.