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Finding the Fourth Proportional to 655,463.12, 904,556.10 and 368,993.60

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Solution

The fourth proportional to 655,463.12, 904,556.10 and 368,993.60 is: 509,220.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,463.12 : 904,556.10 = 368,993.60 : x
  2. Step 2: Convert to fraction form
    655,463.12/904,556.10 = 368,993.60/x
  3. Step 3: Cross multiply
    655,463.12x = 904,556.10 × 368,993.60
  4. Step 4: Simplify right side
    655,463.12x = 333,775,411,740.96
  5. Step 5: Solve for x
    x = 333,775,411,740.96/655,463.12
  6. Step 6: Final answer
    x = 509,220.74

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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.