Home / 513,921.30-770,438.67-247,315.06

Finding the Fourth Proportional to 513,921.30, 770,438.67 and 247,315.06

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Solution

The fourth proportional to 513,921.30, 770,438.67 and 247,315.06 is: 370,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,921.30 : 770,438.67 = 247,315.06 : x
  2. Step 2: Convert to fraction form
    513,921.30/770,438.67 = 247,315.06/x
  3. Step 3: Cross multiply
    513,921.30x = 770,438.67 × 247,315.06
  4. Step 4: Simplify right side
    513,921.30x = 190,541,085,897.37
  5. Step 5: Solve for x
    x = 190,541,085,897.37/513,921.30
  6. Step 6: Final answer
    x = 370,759.27

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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.