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Finding the Fourth Proportional to 545,659.60, 818,489.40 and 498,420.40

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Solution

The fourth proportional to 545,659.60, 818,489.40 and 498,420.40 is: 747,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,659.60 : 818,489.40 = 498,420.40 : x
  2. Step 2: Convert to fraction form
    545,659.60/818,489.40 = 498,420.40/x
  3. Step 3: Cross multiply
    545,659.60x = 818,489.40 × 498,420.40
  4. Step 4: Simplify right side
    545,659.60x = 407,951,814,143.76
  5. Step 5: Solve for x
    x = 407,951,814,143.76/545,659.60
  6. Step 6: Final answer
    x = 747,630.60

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Similar ratio
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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.