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Finding the Fourth Proportional to 475,403.22, 655,678.53 and 404,019.54

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Solution

The fourth proportional to 475,403.22, 655,678.53 and 404,019.54 is: 557,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,403.22 : 655,678.53 = 404,019.54 : x
  2. Step 2: Convert to fraction form
    475,403.22/655,678.53 = 404,019.54/x
  3. Step 3: Cross multiply
    475,403.22x = 655,678.53 × 404,019.54
  4. Step 4: Simplify right side
    475,403.22x = 264,906,938,078.48
  5. Step 5: Solve for x
    x = 264,906,938,078.48/475,403.22
  6. Step 6: Final answer
    x = 557,225.80

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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.