Home / 657,356.20-985,458.30-446,309.80

Finding the Fourth Proportional to 657,356.20, 985,458.30 and 446,309.80

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Solution

The fourth proportional to 657,356.20, 985,458.30 and 446,309.80 is: 669,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,356.20 : 985,458.30 = 446,309.80 : x
  2. Step 2: Convert to fraction form
    657,356.20/985,458.30 = 446,309.80/x
  3. Step 3: Cross multiply
    657,356.20x = 985,458.30 × 446,309.80
  4. Step 4: Simplify right side
    657,356.20x = 439,819,696,781.34
  5. Step 5: Solve for x
    x = 439,819,696,781.34/657,356.20
  6. Step 6: Final answer
    x = 669,073.63

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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.