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Finding the Fourth Proportional to 657,625.95, 907,505.46 and 371,172.69

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Solution

The fourth proportional to 657,625.95, 907,505.46 and 371,172.69 is: 512,207.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,625.95 : 907,505.46 = 371,172.69 : x
  2. Step 2: Convert to fraction form
    657,625.95/907,505.46 = 371,172.69/x
  3. Step 3: Cross multiply
    657,625.95x = 907,505.46 × 371,172.69
  4. Step 4: Simplify right side
    657,625.95x = 336,841,242,777.89
  5. Step 5: Solve for x
    x = 336,841,242,777.89/657,625.95
  6. Step 6: Final answer
    x = 512,207.95

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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.