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Finding the Fourth Proportional to 645,563.60, 967,884.60 and 365,166.80

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Solution

The fourth proportional to 645,563.60, 967,884.60 and 365,166.80 is: 547,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,563.60 : 967,884.60 = 365,166.80 : x
  2. Step 2: Convert to fraction form
    645,563.60/967,884.60 = 365,166.80/x
  3. Step 3: Cross multiply
    645,563.60x = 967,884.60 × 365,166.80
  4. Step 4: Simplify right side
    645,563.60x = 353,439,322,151.28
  5. Step 5: Solve for x
    x = 353,439,322,151.28/645,563.60
  6. Step 6: Final answer
    x = 547,489.55

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1.5x scale

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.