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Finding the Fourth Proportional to 655,261.35, 904,111.07 and 368,676.87

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Solution

The fourth proportional to 655,261.35, 904,111.07 and 368,676.87 is: 508,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,261.35 : 904,111.07 = 368,676.87 : x
  2. Step 2: Convert to fraction form
    655,261.35/904,111.07 = 368,676.87/x
  3. Step 3: Cross multiply
    655,261.35x = 904,111.07 × 368,676.87
  4. Step 4: Simplify right side
    655,261.35x = 333,324,837,576.57
  5. Step 5: Solve for x
    x = 333,324,837,576.57/655,261.35
  6. Step 6: Final answer
    x = 508,689.91

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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.