Home / 657,378.20-985,491.30-446,331.80

Finding the Fourth Proportional to 657,378.20, 985,491.30 and 446,331.80

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Solution

The fourth proportional to 657,378.20, 985,491.30 and 446,331.80 is: 669,106.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,378.20 : 985,491.30 = 446,331.80 : x
  2. Step 2: Convert to fraction form
    657,378.20/985,491.30 = 446,331.80/x
  3. Step 3: Cross multiply
    657,378.20x = 985,491.30 × 446,331.80
  4. Step 4: Simplify right side
    657,378.20x = 439,856,105,813.34
  5. Step 5: Solve for x
    x = 439,856,105,813.34/657,378.20
  6. Step 6: Final answer
    x = 669,106.62

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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.