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Finding the Fourth Proportional to 548,626.70, 822,940.05 and 455,314.70

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Solution

The fourth proportional to 548,626.70, 822,940.05 and 455,314.70 is: 682,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,626.70 : 822,940.05 = 455,314.70 : x
  2. Step 2: Convert to fraction form
    548,626.70/822,940.05 = 455,314.70/x
  3. Step 3: Cross multiply
    548,626.70x = 822,940.05 × 455,314.70
  4. Step 4: Simplify right side
    548,626.70x = 374,696,701,983.74
  5. Step 5: Solve for x
    x = 374,696,701,983.74/548,626.70
  6. Step 6: Final answer
    x = 682,972.05

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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.