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Finding the Fourth Proportional to 493,260.03, 680,666.69 and 278,370.88

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Solution

The fourth proportional to 493,260.03, 680,666.69 and 278,370.88 is: 384,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,260.03 : 680,666.69 = 278,370.88 : x
  2. Step 2: Convert to fraction form
    493,260.03/680,666.69 = 278,370.88/x
  3. Step 3: Cross multiply
    493,260.03x = 680,666.69 × 278,370.88
  4. Step 4: Simplify right side
    493,260.03x = 189,477,784,476.25
  5. Step 5: Solve for x
    x = 189,477,784,476.25/493,260.03
  6. Step 6: Final answer
    x = 384,133.67

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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.