Home / 770,600.80-1,155,765.88-238,126.45

Finding the Fourth Proportional to 770,600.80, 1,155,765.88 and 238,126.45

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Solution

The fourth proportional to 770,600.80, 1,155,765.88 and 238,126.45 is: 357,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,600.80 : 1,155,765.88 = 238,126.45 : x
  2. Step 2: Convert to fraction form
    770,600.80/1,155,765.88 = 238,126.45/x
  3. Step 3: Cross multiply
    770,600.80x = 1,155,765.88 × 238,126.45
  4. Step 4: Simplify right side
    770,600.80x = 275,218,421,237.25
  5. Step 5: Solve for x
    x = 275,218,421,237.25/770,600.80
  6. Step 6: Final answer
    x = 357,147.85

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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.