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Finding the Fourth Proportional to 433,125.60, 649,688.40 and 328,149.60

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Solution

The fourth proportional to 433,125.60, 649,688.40 and 328,149.60 is: 492,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,125.60 : 649,688.40 = 328,149.60 : x
  2. Step 2: Convert to fraction form
    433,125.60/649,688.40 = 328,149.60/x
  3. Step 3: Cross multiply
    433,125.60x = 649,688.40 × 328,149.60
  4. Step 4: Simplify right side
    433,125.60x = 213,194,988,584.64
  5. Step 5: Solve for x
    x = 213,194,988,584.64/433,125.60
  6. Step 6: Final answer
    x = 492,224.40

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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.