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Finding the Fourth Proportional to 540,540.80, 809,644.80 and 447,228.80

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Solution

The fourth proportional to 540,540.80, 809,644.80 and 447,228.80 is: 669,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,540.80 : 809,644.80 = 447,228.80 : x
  2. Step 2: Convert to fraction form
    540,540.80/809,644.80 = 447,228.80/x
  3. Step 3: Cross multiply
    540,540.80x = 809,644.80 × 447,228.80
  4. Step 4: Simplify right side
    540,540.80x = 362,096,472,330.24
  5. Step 5: Solve for x
    x = 362,096,472,330.24/540,540.80
  6. Step 6: Final answer
    x = 669,878.15

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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.