Home / 513,566.18-770,617.88-210,185.54

Finding the Fourth Proportional to 513,566.18, 770,617.88 and 210,185.54

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Solution

The fourth proportional to 513,566.18, 770,617.88 and 210,185.54 is: 315,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,566.18 : 770,617.88 = 210,185.54 : x
  2. Step 2: Convert to fraction form
    513,566.18/770,617.88 = 210,185.54/x
  3. Step 3: Cross multiply
    513,566.18x = 770,617.88 × 210,185.54
  4. Step 4: Simplify right side
    513,566.18x = 161,972,730,337.44
  5. Step 5: Solve for x
    x = 161,972,730,337.44/513,566.18
  6. Step 6: Final answer
    x = 315,388.24

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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.