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Finding the Fourth Proportional to 475,398.72, 655,672.32 and 404,015.04

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Solution

The fourth proportional to 475,398.72, 655,672.32 and 404,015.04 is: 557,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,398.72 : 655,672.32 = 404,015.04 : x
  2. Step 2: Convert to fraction form
    475,398.72/655,672.32 = 404,015.04/x
  3. Step 3: Cross multiply
    475,398.72x = 655,672.32 × 404,015.04
  4. Step 4: Simplify right side
    475,398.72x = 264,901,478,591.69
  5. Step 5: Solve for x
    x = 264,901,478,591.69/475,398.72
  6. Step 6: Final answer
    x = 557,219.59

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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.