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Finding the Fourth Proportional to 540,552.80, 809,662.80 and 447,240.80

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Solution

The fourth proportional to 540,552.80, 809,662.80 and 447,240.80 is: 669,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,552.80 : 809,662.80 = 447,240.80 : x
  2. Step 2: Convert to fraction form
    540,552.80/809,662.80 = 447,240.80/x
  3. Step 3: Cross multiply
    540,552.80x = 809,662.80 × 447,240.80
  4. Step 4: Simplify right side
    540,552.80x = 362,114,238,402.24
  5. Step 5: Solve for x
    x = 362,114,238,402.24/540,552.80
  6. Step 6: Final answer
    x = 669,896.15

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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.