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Finding the Fourth Proportional to 655,058.70, 903,998.67 and 368,588.97

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Solution

The fourth proportional to 655,058.70, 903,998.67 and 368,588.97 is: 508,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,058.70 : 903,998.67 = 368,588.97 : x
  2. Step 2: Convert to fraction form
    655,058.70/903,998.67 = 368,588.97/x
  3. Step 3: Cross multiply
    655,058.70x = 903,998.67 × 368,588.97
  4. Step 4: Simplify right side
    655,058.70x = 333,203,938,656.67
  5. Step 5: Solve for x
    x = 333,203,938,656.67/655,058.70
  6. Step 6: Final answer
    x = 508,662.72

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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.