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Finding the Fourth Proportional to 510,766.80, 764,983.80 and 300,814.80

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Solution

The fourth proportional to 510,766.80, 764,983.80 and 300,814.80 is: 450,535.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,766.80 : 764,983.80 = 300,814.80 : x
  2. Step 2: Convert to fraction form
    510,766.80/764,983.80 = 300,814.80/x
  3. Step 3: Cross multiply
    510,766.80x = 764,983.80 × 300,814.80
  4. Step 4: Simplify right side
    510,766.80x = 230,118,448,800.24
  5. Step 5: Solve for x
    x = 230,118,448,800.24/510,766.80
  6. Step 6: Final answer
    x = 450,535.25

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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.