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Finding the Fourth Proportional to 545,103.20, 819,037.20 and 484,277.60

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Solution

The fourth proportional to 545,103.20, 819,037.20 and 484,277.60 is: 727,644.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,103.20 : 819,037.20 = 484,277.60 : x
  2. Step 2: Convert to fraction form
    545,103.20/819,037.20 = 484,277.60/x
  3. Step 3: Cross multiply
    545,103.20x = 819,037.20 × 484,277.60
  4. Step 4: Simplify right side
    545,103.20x = 396,641,369,526.72
  5. Step 5: Solve for x
    x = 396,641,369,526.72/545,103.20
  6. Step 6: Final answer
    x = 727,644.54

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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.