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Finding the Fourth Proportional to 964,930.80, 1,447,396.20 and 433,489.80

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Solution

The fourth proportional to 964,930.80, 1,447,396.20 and 433,489.80 is: 650,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,930.80 : 1,447,396.20 = 433,489.80 : x
  2. Step 2: Convert to fraction form
    964,930.80/1,447,396.20 = 433,489.80/x
  3. Step 3: Cross multiply
    964,930.80x = 1,447,396.20 × 433,489.80
  4. Step 4: Simplify right side
    964,930.80x = 627,431,489,258.76
  5. Step 5: Solve for x
    x = 627,431,489,258.76/964,930.80
  6. Step 6: Final answer
    x = 650,234.70

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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.