Home / 493,030.09-680,367.67-278,190.15

Finding the Fourth Proportional to 493,030.09, 680,367.67 and 278,190.15

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Solution

The fourth proportional to 493,030.09, 680,367.67 and 278,190.15 is: 383,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,030.09 : 680,367.67 = 278,190.15 : x
  2. Step 2: Convert to fraction form
    493,030.09/680,367.67 = 278,190.15/x
  3. Step 3: Cross multiply
    493,030.09x = 680,367.67 × 278,190.15
  4. Step 4: Simplify right side
    493,030.09x = 189,271,584,172.45
  5. Step 5: Solve for x
    x = 189,271,584,172.45/493,030.09
  6. Step 6: Final answer
    x = 383,894.59

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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.