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Finding the Fourth Proportional to 509,363.88, 762,995.94 and 298,362.12

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Solution

The fourth proportional to 509,363.88, 762,995.94 and 298,362.12 is: 446,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,363.88 : 762,995.94 = 298,362.12 : x
  2. Step 2: Convert to fraction form
    509,363.88/762,995.94 = 298,362.12/x
  3. Step 3: Cross multiply
    509,363.88x = 762,995.94 × 298,362.12
  4. Step 4: Simplify right side
    509,363.88x = 227,649,086,209.79
  5. Step 5: Solve for x
    x = 227,649,086,209.79/509,363.88
  6. Step 6: Final answer
    x = 446,928.21

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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.