Home / 739,994.74-1,021,195.96-400,463.02

Finding the Fourth Proportional to 739,994.74, 1,021,195.96 and 400,463.02

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Solution

The fourth proportional to 739,994.74, 1,021,195.96 and 400,463.02 is: 552,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,994.74 : 1,021,195.96 = 400,463.02 : x
  2. Step 2: Convert to fraction form
    739,994.74/1,021,195.96 = 400,463.02/x
  3. Step 3: Cross multiply
    739,994.74x = 1,021,195.96 × 400,463.02
  4. Step 4: Simplify right side
    739,994.74x = 408,951,218,153.40
  5. Step 5: Solve for x
    x = 408,951,218,153.40/739,994.74
  6. Step 6: Final answer
    x = 552,640.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.