Home / 657,458.98-985,441.70-278,142.96

Finding the Fourth Proportional to 657,458.98, 985,441.70 and 278,142.96

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Solution

The fourth proportional to 657,458.98, 985,441.70 and 278,142.96 is: 416,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,458.98 : 985,441.70 = 278,142.96 : x
  2. Step 2: Convert to fraction form
    657,458.98/985,441.70 = 278,142.96/x
  3. Step 3: Cross multiply
    657,458.98x = 985,441.70 × 278,142.96
  4. Step 4: Simplify right side
    657,458.98x = 274,093,674,171.64
  5. Step 5: Solve for x
    x = 274,093,674,171.64/657,458.98
  6. Step 6: Final answer
    x = 416,898.52

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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.