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Finding the Fourth Proportional to 433,479.30, 649,344.15 and 300,509.70

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Solution

The fourth proportional to 433,479.30, 649,344.15 and 300,509.70 is: 450,158.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,479.30 : 649,344.15 = 300,509.70 : x
  2. Step 2: Convert to fraction form
    433,479.30/649,344.15 = 300,509.70/x
  3. Step 3: Cross multiply
    433,479.30x = 649,344.15 × 300,509.70
  4. Step 4: Simplify right side
    433,479.30x = 195,134,215,713.26
  5. Step 5: Solve for x
    x = 195,134,215,713.26/433,479.30
  6. Step 6: Final answer
    x = 450,158.09

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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.