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Finding the Fourth Proportional to 453,626.56, 626,003.94 and 281,480.50

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Solution

The fourth proportional to 453,626.56, 626,003.94 and 281,480.50 is: 388,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,626.56 : 626,003.94 = 281,480.50 : x
  2. Step 2: Convert to fraction form
    453,626.56/626,003.94 = 281,480.50/x
  3. Step 3: Cross multiply
    453,626.56x = 626,003.94 × 281,480.50
  4. Step 4: Simplify right side
    453,626.56x = 176,207,902,033.17
  5. Step 5: Solve for x
    x = 176,207,902,033.17/453,626.56
  6. Step 6: Final answer
    x = 388,442.65

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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.