Home / 689,763.28-1,034,343.30-347,996.44

Finding the Fourth Proportional to 689,763.28, 1,034,343.30 and 347,996.44

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Solution

The fourth proportional to 689,763.28, 1,034,343.30 and 347,996.44 is: 521,842.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,763.28 : 1,034,343.30 = 347,996.44 : x
  2. Step 2: Convert to fraction form
    689,763.28/1,034,343.30 = 347,996.44/x
  3. Step 3: Cross multiply
    689,763.28x = 1,034,343.30 × 347,996.44
  4. Step 4: Simplify right side
    689,763.28x = 359,947,786,137.85
  5. Step 5: Solve for x
    x = 359,947,786,137.85/689,763.28
  6. Step 6: Final answer
    x = 521,842.49

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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.