Home / 784,719.20-1,177,135.89-328,852.85

Finding the Fourth Proportional to 784,719.20, 1,177,135.89 and 328,852.85

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Solution

The fourth proportional to 784,719.20, 1,177,135.89 and 328,852.85 is: 493,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,719.20 : 1,177,135.89 = 328,852.85 : x
  2. Step 2: Convert to fraction form
    784,719.20/1,177,135.89 = 328,852.85/x
  3. Step 3: Cross multiply
    784,719.20x = 1,177,135.89 × 328,852.85
  4. Step 4: Simplify right side
    784,719.20x = 387,104,491,408.97
  5. Step 5: Solve for x
    x = 387,104,491,408.97/784,719.20
  6. Step 6: Final answer
    x = 493,303.20

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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.