Home / 498,855.09-688,418.96-272,500.59

Finding the Fourth Proportional to 498,855.09, 688,418.96 and 272,500.59

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Solution

The fourth proportional to 498,855.09, 688,418.96 and 272,500.59 is: 376,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,855.09 : 688,418.96 = 272,500.59 : x
  2. Step 2: Convert to fraction form
    498,855.09/688,418.96 = 272,500.59/x
  3. Step 3: Cross multiply
    498,855.09x = 688,418.96 × 272,500.59
  4. Step 4: Simplify right side
    498,855.09x = 187,594,571,404.68
  5. Step 5: Solve for x
    x = 187,594,571,404.68/498,855.09
  6. Step 6: Final answer
    x = 376,050.23

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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.