Home / 770,134.80-1,155,279.40-264,629.20

Finding the Fourth Proportional to 770,134.80, 1,155,279.40 and 264,629.20

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Solution

The fourth proportional to 770,134.80, 1,155,279.40 and 264,629.20 is: 396,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,134.80 : 1,155,279.40 = 264,629.20 : x
  2. Step 2: Convert to fraction form
    770,134.80/1,155,279.40 = 264,629.20/x
  3. Step 3: Cross multiply
    770,134.80x = 1,155,279.40 × 264,629.20
  4. Step 4: Simplify right side
    770,134.80x = 305,720,663,398.48
  5. Step 5: Solve for x
    x = 305,720,663,398.48/770,134.80
  6. Step 6: Final answer
    x = 396,970.33

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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.