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Finding the Fourth Proportional to 655,213.32, 904,044.79 and 368,628.84

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Solution

The fourth proportional to 655,213.32, 904,044.79 and 368,628.84 is: 508,623.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,213.32 : 904,044.79 = 368,628.84 : x
  2. Step 2: Convert to fraction form
    655,213.32/904,044.79 = 368,628.84/x
  3. Step 3: Cross multiply
    655,213.32x = 904,044.79 × 368,628.84
  4. Step 4: Simplify right side
    655,213.32x = 333,256,981,324.17
  5. Step 5: Solve for x
    x = 333,256,981,324.17/655,213.32
  6. Step 6: Final answer
    x = 508,623.64

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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.