Home / 674,009.40-1,010,294.80-336,385.20

Finding the Fourth Proportional to 674,009.40, 1,010,294.80 and 336,385.20

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Solution

The fourth proportional to 674,009.40, 1,010,294.80 and 336,385.20 is: 504,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,009.40 : 1,010,294.80 = 336,385.20 : x
  2. Step 2: Convert to fraction form
    674,009.40/1,010,294.80 = 336,385.20/x
  3. Step 3: Cross multiply
    674,009.40x = 1,010,294.80 × 336,385.20
  4. Step 4: Simplify right side
    674,009.40x = 339,848,218,356.96
  5. Step 5: Solve for x
    x = 339,848,218,356.96/674,009.40
  6. Step 6: Final answer
    x = 504,218.81

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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.