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Finding the Fourth Proportional to 450,019.20, 675,201.60 and 442,934.40

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Solution

The fourth proportional to 450,019.20, 675,201.60 and 442,934.40 is: 664,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,019.20 : 675,201.60 = 442,934.40 : x
  2. Step 2: Convert to fraction form
    450,019.20/675,201.60 = 442,934.40/x
  3. Step 3: Cross multiply
    450,019.20x = 675,201.60 × 442,934.40
  4. Step 4: Simplify right side
    450,019.20x = 299,070,015,575.04
  5. Step 5: Solve for x
    x = 299,070,015,575.04/450,019.20
  6. Step 6: Final answer
    x = 664,571.68

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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.