Home / 547,739.69-755,751.18-318,160.58

Finding the Fourth Proportional to 547,739.69, 755,751.18 and 318,160.58

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Solution

The fourth proportional to 547,739.69, 755,751.18 and 318,160.58 is: 438,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,739.69 : 755,751.18 = 318,160.58 : x
  2. Step 2: Convert to fraction form
    547,739.69/755,751.18 = 318,160.58/x
  3. Step 3: Cross multiply
    547,739.69x = 755,751.18 × 318,160.58
  4. Step 4: Simplify right side
    547,739.69x = 240,450,235,653.86
  5. Step 5: Solve for x
    x = 240,450,235,653.86/547,739.69
  6. Step 6: Final answer
    x = 438,986.33

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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.