Home / 409,554.14-614,289.67-109,995.78

Finding the Fourth Proportional to 409,554.14, 614,289.67 and 109,995.78

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Solution

The fourth proportional to 409,554.14, 614,289.67 and 109,995.78 is: 164,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,554.14 : 614,289.67 = 109,995.78 : x
  2. Step 2: Convert to fraction form
    409,554.14/614,289.67 = 109,995.78/x
  3. Step 3: Cross multiply
    409,554.14x = 614,289.67 × 109,995.78
  4. Step 4: Simplify right side
    409,554.14x = 67,569,271,397.59
  5. Step 5: Solve for x
    x = 67,569,271,397.59/409,554.14
  6. Step 6: Final answer
    x = 164,982.51

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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.