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Finding the Fourth Proportional to 451,062.16, 622,752.64 and 281,545.36

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Solution

The fourth proportional to 451,062.16, 622,752.64 and 281,545.36 is: 388,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,062.16 : 622,752.64 = 281,545.36 : x
  2. Step 2: Convert to fraction form
    451,062.16/622,752.64 = 281,545.36/x
  3. Step 3: Cross multiply
    451,062.16x = 622,752.64 × 281,545.36
  4. Step 4: Simplify right side
    451,062.16x = 175,333,116,219.75
  5. Step 5: Solve for x
    x = 175,333,116,219.75/451,062.16
  6. Step 6: Final answer
    x = 388,711.65

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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.