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Finding the Fourth Proportional to 655,213.13, 904,044.52 and 368,628.65

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Solution

The fourth proportional to 655,213.13, 904,044.52 and 368,628.65 is: 508,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,213.13 : 904,044.52 = 368,628.65 : x
  2. Step 2: Convert to fraction form
    655,213.13/904,044.52 = 368,628.65/x
  3. Step 3: Cross multiply
    655,213.13x = 904,044.52 × 368,628.65
  4. Step 4: Simplify right side
    655,213.13x = 333,256,710,278.23
  5. Step 5: Solve for x
    x = 333,256,710,278.23/655,213.13
  6. Step 6: Final answer
    x = 508,623.37

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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.