Home / 498,977.75-688,589.30-272,624.87

Finding the Fourth Proportional to 498,977.75, 688,589.30 and 272,624.87

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Solution

The fourth proportional to 498,977.75, 688,589.30 and 272,624.87 is: 376,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,977.75 : 688,589.30 = 272,624.87 : x
  2. Step 2: Convert to fraction form
    498,977.75/688,589.30 = 272,624.87/x
  3. Step 3: Cross multiply
    498,977.75x = 688,589.30 × 272,624.87
  4. Step 4: Simplify right side
    498,977.75x = 187,726,568,395.89
  5. Step 5: Solve for x
    x = 187,726,568,395.89/498,977.75
  6. Step 6: Final answer
    x = 376,222.32

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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.