Home / 770,638.56-1,155,671.06-265,057.60

Finding the Fourth Proportional to 770,638.56, 1,155,671.06 and 265,057.60

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Solution

The fourth proportional to 770,638.56, 1,155,671.06 and 265,057.60 is: 397,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,638.56 : 1,155,671.06 = 265,057.60 : x
  2. Step 2: Convert to fraction form
    770,638.56/1,155,671.06 = 265,057.60/x
  3. Step 3: Cross multiply
    770,638.56x = 1,155,671.06 × 265,057.60
  4. Step 4: Simplify right side
    770,638.56x = 306,319,397,553.06
  5. Step 5: Solve for x
    x = 306,319,397,553.06/770,638.56
  6. Step 6: Final answer
    x = 397,487.76

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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.