Home / 499,353.26-689,107.38-272,998.76

Finding the Fourth Proportional to 499,353.26, 689,107.38 and 272,998.76

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Solution

The fourth proportional to 499,353.26, 689,107.38 and 272,998.76 is: 376,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,353.26 : 689,107.38 = 272,998.76 : x
  2. Step 2: Convert to fraction form
    499,353.26/689,107.38 = 272,998.76/x
  3. Step 3: Cross multiply
    499,353.26x = 689,107.38 × 272,998.76
  4. Step 4: Simplify right side
    499,353.26x = 188,125,460,246.85
  5. Step 5: Solve for x
    x = 188,125,460,246.85/499,353.26
  6. Step 6: Final answer
    x = 376,738.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.