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Finding the Fourth Proportional to 655,214.69, 904,046.68 and 368,630.21

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Solution

The fourth proportional to 655,214.69, 904,046.68 and 368,630.21 is: 508,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,214.69 : 904,046.68 = 368,630.21 : x
  2. Step 2: Convert to fraction form
    655,214.69/904,046.68 = 368,630.21/x
  3. Step 3: Cross multiply
    655,214.69x = 904,046.68 × 368,630.21
  4. Step 4: Simplify right side
    655,214.69x = 333,258,917,498.20
  5. Step 5: Solve for x
    x = 333,258,917,498.20/655,214.69
  6. Step 6: Final answer
    x = 508,625.53

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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.