Home / 657,456.20-985,608.30-446,409.80

Finding the Fourth Proportional to 657,456.20, 985,608.30 and 446,409.80

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Solution

The fourth proportional to 657,456.20, 985,608.30 and 446,409.80 is: 669,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,456.20 : 985,608.30 = 446,409.80 : x
  2. Step 2: Convert to fraction form
    657,456.20/985,608.30 = 446,409.80/x
  3. Step 3: Cross multiply
    657,456.20x = 985,608.30 × 446,409.80
  4. Step 4: Simplify right side
    657,456.20x = 439,985,204,081.34
  5. Step 5: Solve for x
    x = 439,985,204,081.34/657,456.20
  6. Step 6: Final answer
    x = 669,223.60

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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.