Home / 481,027.56-663,712.59-287,406.19

Finding the Fourth Proportional to 481,027.56, 663,712.59 and 287,406.19

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Solution

The fourth proportional to 481,027.56, 663,712.59 and 287,406.19 is: 396,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,027.56 : 663,712.59 = 287,406.19 : x
  2. Step 2: Convert to fraction form
    481,027.56/663,712.59 = 287,406.19/x
  3. Step 3: Cross multiply
    481,027.56x = 663,712.59 × 287,406.19
  4. Step 4: Simplify right side
    481,027.56x = 190,755,108,654.35
  5. Step 5: Solve for x
    x = 190,755,108,654.35/481,027.56
  6. Step 6: Final answer
    x = 396,557.55

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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.