Home / 447,518.20-671,299.44-127,717.21

Finding the Fourth Proportional to 447,518.20, 671,299.44 and 127,717.21

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Solution

The fourth proportional to 447,518.20, 671,299.44 and 127,717.21 is: 191,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,518.20 : 671,299.44 = 127,717.21 : x
  2. Step 2: Convert to fraction form
    447,518.20/671,299.44 = 127,717.21/x
  3. Step 3: Cross multiply
    447,518.20x = 671,299.44 × 127,717.21
  4. Step 4: Simplify right side
    447,518.20x = 85,736,491,551.36
  5. Step 5: Solve for x
    x = 85,736,491,551.36/447,518.20
  6. Step 6: Final answer
    x = 191,582.13

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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.