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Finding the Fourth Proportional to 548,046.30, 820,903.05 and 454,734.30

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Solution

The fourth proportional to 548,046.30, 820,903.05 and 454,734.30 is: 681,133.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,046.30 : 820,903.05 = 454,734.30 : x
  2. Step 2: Convert to fraction form
    548,046.30/820,903.05 = 454,734.30/x
  3. Step 3: Cross multiply
    548,046.30x = 820,903.05 × 454,734.30
  4. Step 4: Simplify right side
    548,046.30x = 373,292,773,809.62
  5. Step 5: Solve for x
    x = 373,292,773,809.62/548,046.30
  6. Step 6: Final answer
    x = 681,133.64

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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.