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Finding the Fourth Proportional to 558,408.60, 836,624.70 and 539,908.20

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Solution

The fourth proportional to 558,408.60, 836,624.70 and 539,908.20 is: 808,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,408.60 : 836,624.70 = 539,908.20 : x
  2. Step 2: Convert to fraction form
    558,408.60/836,624.70 = 539,908.20/x
  3. Step 3: Cross multiply
    558,408.60x = 836,624.70 × 539,908.20
  4. Step 4: Simplify right side
    558,408.60x = 451,700,535,852.54
  5. Step 5: Solve for x
    x = 451,700,535,852.54/558,408.60
  6. Step 6: Final answer
    x = 808,906.84

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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.