Home / 753,323.40-1,039,540.37-413,791.65

Finding the Fourth Proportional to 753,323.40, 1,039,540.37 and 413,791.65

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Solution

The fourth proportional to 753,323.40, 1,039,540.37 and 413,791.65 is: 571,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,323.40 : 1,039,540.37 = 413,791.65 : x
  2. Step 2: Convert to fraction form
    753,323.40/1,039,540.37 = 413,791.65/x
  3. Step 3: Cross multiply
    753,323.40x = 1,039,540.37 × 413,791.65
  4. Step 4: Simplify right side
    753,323.40x = 430,153,122,874.95
  5. Step 5: Solve for x
    x = 430,153,122,874.95/753,323.40
  6. Step 6: Final answer
    x = 571,007.25

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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.