Home / 513,240.60-768,739.01-260,086.55

Finding the Fourth Proportional to 513,240.60, 768,739.01 and 260,086.55

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Solution

The fourth proportional to 513,240.60, 768,739.01 and 260,086.55 is: 389,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,240.60 : 768,739.01 = 260,086.55 : x
  2. Step 2: Convert to fraction form
    513,240.60/768,739.01 = 260,086.55/x
  3. Step 3: Cross multiply
    513,240.60x = 768,739.01 × 260,086.55
  4. Step 4: Simplify right side
    513,240.60x = 199,938,671,817.19
  5. Step 5: Solve for x
    x = 199,938,671,817.19/513,240.60
  6. Step 6: Final answer
    x = 389,561.29

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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.