Home / 778,958.40-1,074,959.92-434,791.35

Finding the Fourth Proportional to 778,958.40, 1,074,959.92 and 434,791.35

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Solution

The fourth proportional to 778,958.40, 1,074,959.92 and 434,791.35 is: 600,010.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,958.40 : 1,074,959.92 = 434,791.35 : x
  2. Step 2: Convert to fraction form
    778,958.40/1,074,959.92 = 434,791.35/x
  3. Step 3: Cross multiply
    778,958.40x = 1,074,959.92 × 434,791.35
  4. Step 4: Simplify right side
    778,958.40x = 467,383,275,356.18
  5. Step 5: Solve for x
    x = 467,383,275,356.18/778,958.40
  6. Step 6: Final answer
    x = 600,010.57

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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.