Home / 739,669.20-1,020,740.04-400,134.48

Finding the Fourth Proportional to 739,669.20, 1,020,740.04 and 400,134.48

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Solution

The fourth proportional to 739,669.20, 1,020,740.04 and 400,134.48 is: 552,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,669.20 : 1,020,740.04 = 400,134.48 : x
  2. Step 2: Convert to fraction form
    739,669.20/1,020,740.04 = 400,134.48/x
  3. Step 3: Cross multiply
    739,669.20x = 1,020,740.04 × 400,134.48
  4. Step 4: Simplify right side
    739,669.20x = 408,433,285,120.58
  5. Step 5: Solve for x
    x = 408,433,285,120.58/739,669.20
  6. Step 6: Final answer
    x = 552,183.71

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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.