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Finding the Fourth Proportional to 548,639.17, 755,439.76 and 480,273.55

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Solution

The fourth proportional to 548,639.17, 755,439.76 and 480,273.55 is: 661,304.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,639.17 : 755,439.76 = 480,273.55 : x
  2. Step 2: Convert to fraction form
    548,639.17/755,439.76 = 480,273.55/x
  3. Step 3: Cross multiply
    548,639.17x = 755,439.76 × 480,273.55
  4. Step 4: Simplify right side
    548,639.17x = 362,817,735,346.35
  5. Step 5: Solve for x
    x = 362,817,735,346.35/548,639.17
  6. Step 6: Final answer
    x = 661,304.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.