Home / 1,447,512.86-2,170,638.48-487,789.61

Finding the Fourth Proportional to 1,447,512.86, 2,170,638.48 and 487,789.61

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Solution

The fourth proportional to 1,447,512.86, 2,170,638.48 and 487,789.61 is: 731,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,512.86 : 2,170,638.48 = 487,789.61 : x
  2. Step 2: Convert to fraction form
    1,447,512.86/2,170,638.48 = 487,789.61/x
  3. Step 3: Cross multiply
    1,447,512.86x = 2,170,638.48 × 487,789.61
  4. Step 4: Simplify right side
    1,447,512.86x = 1,058,814,886,757.00
  5. Step 5: Solve for x
    x = 1,058,814,886,757.00/1,447,512.86
  6. Step 6: Final answer
    x = 731,471.84

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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.