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Finding the Fourth Proportional to 655,143.69, 904,025.01 and 368,762.25

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Solution

The fourth proportional to 655,143.69, 904,025.01 and 368,762.25 is: 508,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,143.69 : 904,025.01 = 368,762.25 : x
  2. Step 2: Convert to fraction form
    655,143.69/904,025.01 = 368,762.25/x
  3. Step 3: Cross multiply
    655,143.69x = 904,025.01 × 368,762.25
  4. Step 4: Simplify right side
    655,143.69x = 333,370,296,743.87
  5. Step 5: Solve for x
    x = 333,370,296,743.87/655,143.69
  6. Step 6: Final answer
    x = 508,850.66

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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.