Home / 678,320.14-1,017,469.68-229,356.32

Finding the Fourth Proportional to 678,320.14, 1,017,469.68 and 229,356.32

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Solution

The fourth proportional to 678,320.14, 1,017,469.68 and 229,356.32 is: 344,030.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,320.14 : 1,017,469.68 = 229,356.32 : x
  2. Step 2: Convert to fraction form
    678,320.14/1,017,469.68 = 229,356.32/x
  3. Step 3: Cross multiply
    678,320.14x = 1,017,469.68 × 229,356.32
  4. Step 4: Simplify right side
    678,320.14x = 233,363,101,516.38
  5. Step 5: Solve for x
    x = 233,363,101,516.38/678,320.14
  6. Step 6: Final answer
    x = 344,030.92

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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.