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Finding the Fourth Proportional to 657,860.22, 907,796.43 and 371,408.58

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Solution

The fourth proportional to 657,860.22, 907,796.43 and 371,408.58 is: 512,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,860.22 : 907,796.43 = 371,408.58 : x
  2. Step 2: Convert to fraction form
    657,860.22/907,796.43 = 371,408.58/x
  3. Step 3: Cross multiply
    657,860.22x = 907,796.43 × 371,408.58
  4. Step 4: Simplify right side
    657,860.22x = 337,163,382,995.37
  5. Step 5: Solve for x
    x = 337,163,382,995.37/657,860.22
  6. Step 6: Final answer
    x = 512,515.23

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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.