Home / 782,618.86-1,173,739.35-326,963.89

Finding the Fourth Proportional to 782,618.86, 1,173,739.35 and 326,963.89

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Solution

The fourth proportional to 782,618.86, 1,173,739.35 and 326,963.89 is: 490,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,618.86 : 1,173,739.35 = 326,963.89 : x
  2. Step 2: Convert to fraction form
    782,618.86/1,173,739.35 = 326,963.89/x
  3. Step 3: Cross multiply
    782,618.86x = 1,173,739.35 × 326,963.89
  4. Step 4: Simplify right side
    782,618.86x = 383,770,383,722.07
  5. Step 5: Solve for x
    x = 383,770,383,722.07/782,618.86
  6. Step 6: Final answer
    x = 490,366.90

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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.