Home / 657,340.20-985,434.30-446,293.80

Finding the Fourth Proportional to 657,340.20, 985,434.30 and 446,293.80

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Solution

The fourth proportional to 657,340.20, 985,434.30 and 446,293.80 is: 669,049.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,340.20 : 985,434.30 = 446,293.80 : x
  2. Step 2: Convert to fraction form
    657,340.20/985,434.30 = 446,293.80/x
  3. Step 3: Cross multiply
    657,340.20x = 985,434.30 × 446,293.80
  4. Step 4: Simplify right side
    657,340.20x = 439,793,218,397.34
  5. Step 5: Solve for x
    x = 439,793,218,397.34/657,340.20
  6. Step 6: Final answer
    x = 669,049.63

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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.