Home / 499,315.88-689,056.26-272,961.56

Finding the Fourth Proportional to 499,315.88, 689,056.26 and 272,961.56

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Solution

The fourth proportional to 499,315.88, 689,056.26 and 272,961.56 is: 376,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,315.88 : 689,056.26 = 272,961.56 : x
  2. Step 2: Convert to fraction form
    499,315.88/689,056.26 = 272,961.56/x
  3. Step 3: Cross multiply
    499,315.88x = 689,056.26 × 272,961.56
  4. Step 4: Simplify right side
    499,315.88x = 188,085,871,657.37
  5. Step 5: Solve for x
    x = 188,085,871,657.37/499,315.88
  6. Step 6: Final answer
    x = 376,687.14

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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.