Home / 557,890.20-770,085.90-331,533

Finding the Fourth Proportional to 557,890.20, 770,085.90 and 331,533

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Solution

The fourth proportional to 557,890.20, 770,085.90 and 331,533 is: 457,632.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,890.20 : 770,085.90 = 331,533 : x
  2. Step 2: Convert to fraction form
    557,890.20/770,085.90 = 331,533/x
  3. Step 3: Cross multiply
    557,890.20x = 770,085.90 × 331,533
  4. Step 4: Simplify right side
    557,890.20x = 255,308,888,684.70
  5. Step 5: Solve for x
    x = 255,308,888,684.70/557,890.20
  6. Step 6: Final answer
    x = 457,632.86

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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.