Home / 770,786.69-1,156,290.30-238,348.78

Finding the Fourth Proportional to 770,786.69, 1,156,290.30 and 238,348.78

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Solution

The fourth proportional to 770,786.69, 1,156,290.30 and 238,348.78 is: 357,557.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,786.69 : 1,156,290.30 = 238,348.78 : x
  2. Step 2: Convert to fraction form
    770,786.69/1,156,290.30 = 238,348.78/x
  3. Step 3: Cross multiply
    770,786.69x = 1,156,290.30 × 238,348.78
  4. Step 4: Simplify right side
    770,786.69x = 275,600,382,330.83
  5. Step 5: Solve for x
    x = 275,600,382,330.83/770,786.69
  6. Step 6: Final answer
    x = 357,557.27

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1.5x scale

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.