Home / 513,986.40-770,536.08-247,380.12

Finding the Fourth Proportional to 513,986.40, 770,536.08 and 247,380.12

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Solution

The fourth proportional to 513,986.40, 770,536.08 and 247,380.12 is: 370,856.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,986.40 : 770,536.08 = 247,380.12 : x
  2. Step 2: Convert to fraction form
    513,986.40/770,536.08 = 247,380.12/x
  3. Step 3: Cross multiply
    513,986.40x = 770,536.08 × 247,380.12
  4. Step 4: Simplify right side
    513,986.40x = 190,615,307,934.73
  5. Step 5: Solve for x
    x = 190,615,307,934.73/513,986.40
  6. Step 6: Final answer
    x = 370,856.72

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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.