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Finding the Fourth Proportional to 451,007.74, 674,945.07 and 280,159.30

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Solution

The fourth proportional to 451,007.74, 674,945.07 and 280,159.30 is: 419,265.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,007.74 : 674,945.07 = 280,159.30 : x
  2. Step 2: Convert to fraction form
    451,007.74/674,945.07 = 280,159.30/x
  3. Step 3: Cross multiply
    451,007.74x = 674,945.07 × 280,159.30
  4. Step 4: Simplify right side
    451,007.74x = 189,092,138,349.65
  5. Step 5: Solve for x
    x = 189,092,138,349.65/451,007.74
  6. Step 6: Final answer
    x = 419,265.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.