Home / 493,220.12-680,663.04-278,367.62

Finding the Fourth Proportional to 493,220.12, 680,663.04 and 278,367.62

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Solution

The fourth proportional to 493,220.12, 680,663.04 and 278,367.62 is: 384,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,220.12 : 680,663.04 = 278,367.62 : x
  2. Step 2: Convert to fraction form
    493,220.12/680,663.04 = 278,367.62/x
  3. Step 3: Cross multiply
    493,220.12x = 680,663.04 × 278,367.62
  4. Step 4: Simplify right side
    493,220.12x = 189,474,550,466.77
  5. Step 5: Solve for x
    x = 189,474,550,466.77/493,220.12
  6. Step 6: Final answer
    x = 384,158.19

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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.