Home / 490,766.97-736,008.20-191,180.78

Finding the Fourth Proportional to 490,766.97, 736,008.20 and 191,180.78

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Solution

The fourth proportional to 490,766.97, 736,008.20 and 191,180.78 is: 286,715.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,766.97 : 736,008.20 = 191,180.78 : x
  2. Step 2: Convert to fraction form
    490,766.97/736,008.20 = 191,180.78/x
  3. Step 3: Cross multiply
    490,766.97x = 736,008.20 × 191,180.78
  4. Step 4: Simplify right side
    490,766.97x = 140,710,621,762.40
  5. Step 5: Solve for x
    x = 140,710,621,762.40/490,766.97
  6. Step 6: Final answer
    x = 286,715.75

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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.