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Finding the Fourth Proportional to 482,601.38, 666,021.45 and 278,660.89

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Solution

The fourth proportional to 482,601.38, 666,021.45 and 278,660.89 is: 384,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,601.38 : 666,021.45 = 278,660.89 : x
  2. Step 2: Convert to fraction form
    482,601.38/666,021.45 = 278,660.89/x
  3. Step 3: Cross multiply
    482,601.38x = 666,021.45 × 278,660.89
  4. Step 4: Simplify right side
    482,601.38x = 185,594,130,016.09
  5. Step 5: Solve for x
    x = 185,594,130,016.09/482,601.38
  6. Step 6: Final answer
    x = 384,570.24

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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.