Home / 493,418.24-680,704.86-289,531.52

Finding the Fourth Proportional to 493,418.24, 680,704.86 and 289,531.52

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Solution

The fourth proportional to 493,418.24, 680,704.86 and 289,531.52 is: 399,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,418.24 : 680,704.86 = 289,531.52 : x
  2. Step 2: Convert to fraction form
    493,418.24/680,704.86 = 289,531.52/x
  3. Step 3: Cross multiply
    493,418.24x = 680,704.86 × 289,531.52
  4. Step 4: Simplify right side
    493,418.24x = 197,085,512,787.19
  5. Step 5: Solve for x
    x = 197,085,512,787.19/493,418.24
  6. Step 6: Final answer
    x = 399,428.92

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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.