Home / 493,510.20-681,084.30-278,702.52

Finding the Fourth Proportional to 493,510.20, 681,084.30 and 278,702.52

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Solution

The fourth proportional to 493,510.20, 681,084.30 and 278,702.52 is: 384,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,510.20 : 681,084.30 = 278,702.52 : x
  2. Step 2: Convert to fraction form
    493,510.20/681,084.30 = 278,702.52/x
  3. Step 3: Cross multiply
    493,510.20x = 681,084.30 × 278,702.52
  4. Step 4: Simplify right side
    493,510.20x = 189,819,910,742.44
  5. Step 5: Solve for x
    x = 189,819,910,742.44/493,510.20
  6. Step 6: Final answer
    x = 384,632.19

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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.