Home / 513,567.18-770,619.38-210,186.54

Finding the Fourth Proportional to 513,567.18, 770,619.38 and 210,186.54

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Solution

The fourth proportional to 513,567.18, 770,619.38 and 210,186.54 is: 315,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,567.18 : 770,619.38 = 210,186.54 : x
  2. Step 2: Convert to fraction form
    513,567.18/770,619.38 = 210,186.54/x
  3. Step 3: Cross multiply
    513,567.18x = 770,619.38 × 210,186.54
  4. Step 4: Simplify right side
    513,567.18x = 161,973,821,139.15
  5. Step 5: Solve for x
    x = 161,973,821,139.15/513,567.18
  6. Step 6: Final answer
    x = 315,389.74

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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.