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Finding the Fourth Proportional to 657,817.98, 907,792.56 and 367,441.78

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Solution

The fourth proportional to 657,817.98, 907,792.56 and 367,441.78 is: 507,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,817.98 : 907,792.56 = 367,441.78 : x
  2. Step 2: Convert to fraction form
    657,817.98/907,792.56 = 367,441.78/x
  3. Step 3: Cross multiply
    657,817.98x = 907,792.56 × 367,441.78
  4. Step 4: Simplify right side
    657,817.98x = 333,560,914,117.16
  5. Step 5: Solve for x
    x = 333,560,914,117.16/657,817.98
  6. Step 6: Final answer
    x = 507,071.75

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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.