Home / 770,196.30-1,155,491.85-320,767.74

Finding the Fourth Proportional to 770,196.30, 1,155,491.85 and 320,767.74

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Solution

The fourth proportional to 770,196.30, 1,155,491.85 and 320,767.74 is: 481,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,196.30 : 1,155,491.85 = 320,767.74 : x
  2. Step 2: Convert to fraction form
    770,196.30/1,155,491.85 = 320,767.74/x
  3. Step 3: Cross multiply
    770,196.30x = 1,155,491.85 × 320,767.74
  4. Step 4: Simplify right side
    770,196.30x = 370,644,509,312.92
  5. Step 5: Solve for x
    x = 370,644,509,312.92/770,196.30
  6. Step 6: Final answer
    x = 481,233.82

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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.