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Finding the Fourth Proportional to 545,856.60, 818,784.90 and 332,405.40

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Solution

The fourth proportional to 545,856.60, 818,784.90 and 332,405.40 is: 498,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,856.60 : 818,784.90 = 332,405.40 : x
  2. Step 2: Convert to fraction form
    545,856.60/818,784.90 = 332,405.40/x
  3. Step 3: Cross multiply
    545,856.60x = 818,784.90 × 332,405.40
  4. Step 4: Simplify right side
    545,856.60x = 272,168,522,198.46
  5. Step 5: Solve for x
    x = 272,168,522,198.46/545,856.60
  6. Step 6: Final answer
    x = 498,608.10

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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.