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Finding the Fourth Proportional to 445,935.51, 668,896.47 and 309,032.28

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Solution

The fourth proportional to 445,935.51, 668,896.47 and 309,032.28 is: 463,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,935.51 : 668,896.47 = 309,032.28 : x
  2. Step 2: Convert to fraction form
    445,935.51/668,896.47 = 309,032.28/x
  3. Step 3: Cross multiply
    445,935.51x = 668,896.47 × 309,032.28
  4. Step 4: Simplify right side
    445,935.51x = 206,710,601,208.05
  5. Step 5: Solve for x
    x = 206,710,601,208.05/445,935.51
  6. Step 6: Final answer
    x = 463,543.71

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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.