Home / 513,464.20-770,327.90-213,845.16

Finding the Fourth Proportional to 513,464.20, 770,327.90 and 213,845.16

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Solution

The fourth proportional to 513,464.20, 770,327.90 and 213,845.16 is: 320,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,464.20 : 770,327.90 = 213,845.16 : x
  2. Step 2: Convert to fraction form
    513,464.20/770,327.90 = 213,845.16/x
  3. Step 3: Cross multiply
    513,464.20x = 770,327.90 × 213,845.16
  4. Step 4: Simplify right side
    513,464.20x = 164,730,893,027.96
  5. Step 5: Solve for x
    x = 164,730,893,027.96/513,464.20
  6. Step 6: Final answer
    x = 320,822.55

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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.